Any practice that removes pest's breeding or overwintering sites by removing crop leaves and stems, destroying alternate hosts, or pruning infested plant parts is known as

Any practice that removes pest's breeding or overwintering sites by removing crop leaves and stems, destroying alternate hosts, or pruning infested plant parts is known as 

a. trap cropping
b. clean culture
c. eradication
d. biological control


Answer: b. clean culture

Environmental contamination by agrichemicals can be decreased through several management practices, including

Environmental contamination by agrichemicals can be decreased through several management practices, including

a. proper mixing
b. proper application
c. proper storage and disposal
d. all of the above


Answer: d. all of the above

Surveys have shown that more than _________ percent of U.S. counties have potential groundwater contamination from agrichemicals.

Surveys have shown that more than _________ percent of U.S. counties have potential groundwater contamination from agrichemicals.

a. 10
b. 20
c. 25
d. 50


Answer: d. 50

The success of insects in terms of numbers and species is attributed to several characteristics, including their anatomy, development diversity, and

The success of insects in terms of numbers and species is attributed to several characteristics, including their anatomy, development diversity, and 

a. quick reflexes
b. reproductive potential
c. exoskeletons
d. their heads, thoraxes, and abdomens


Answer: b. reproductive potential

Perennial weeds are capable of reproducing vegetatively by using

Perennial weeds are capable of reproducing vegetatively by using 

a. rhizomes
b. stolons
c. an extensive rootstock
d. all of the above


Answer: d. all of the above

The control method that makes use of mature insects that have been exposed to radiation to cause sterility is called

The control method that makes use of mature insects that have been exposed to radiation to cause sterility is called 

a. chemical control
b. insects control using sterile male insects
c. genetic control
d. regulatory control


Answer: b. insect control using sterile male insects

An organism with six legs and three body segments is

An organism with six legs and three body segments is 

a. an insect
b. an arachnid
c. a vector
d. a nematode


Answer: a. an insect

Which of the following is not a factor involved with the disease triangle

Which of the following is not a factor involved with the disease triangle 

a. the pathogenic organism, or causal agent, must be present
b. a susceptible plant or host must be present
c. a weakness in the plant must be present
d. environmental conditions conducive to support of the casual agent must occur


Answer: c. a weakness in the plant must be present

Insects are beneficial for which of the following reasons

Insects are beneficial for which of the following reasons

a. they aid in plant pollination
b. they eat other insects
c. they increase soil tilth, contribute to nutrient recycling, and act as biological weed control agents
d. all of the above


Answer: d. all of the above

Noxious weeds are often spread when seeds become airborne or

Noxious weeds are often spread when seeds become airborne or 

a. fall into flowing streams
b. become attached to the hair of an animal or to human clothing
c. are eaten and distributed by birds
d. all of the above


Answer: d. all of the above

Weeds can be considered undesirable for which of the following reasons

Weeds can be considered undesirable for which of the following reasons

a. they compete for water, nutrients, light, and space, which result in reduced crop yields
b. they decrease crop quality
c. they harbor insects and disease pathogens
d. all of the above


Answer: d. all of the above

Which one of the following classes of pests would be killed by rodenticide

Which one of the following classes of pests would be killed by rodenticide

a. mites and ticks
b. birds
c. fungi
d. rodents


Answer: d. rodents

Which one of the following classes of pests would be killed by a nematicide

Which one of the following classes of pests would be killed by a nematicide

a. mites and ticks
b. nematodes
c. fungi
d. weeds


Answer: b. nematodes

Which one of the following classes of pests would be killed by an acaricide

Which one of the following classes of pests would be killed by an acaricide

a. mites and ticks
b. birds
c. fungi
d. weeds


Answer: a. mites and ticks

Which one of the following classes of pests would be killed by a fungicide

Which one of the following classes of pests would be killed by a fungicide

a. mites and ticks
b. birds
c. fungi
d. weeds


Answer: c. fungi

Damage by pests to agricultural crops in the U.S. has been estimated to be ____________ of the total crop production potential.

Damage by pests to agricultural crops in the U.S. has been estimated to be ____________ of the total crop production potential.

a. one-quarter
b. one-third
c. one-half
d. one-tenth


Answer: b. one-third

DDT was banned from use in the U.S> because it was determined that DDT was responsible for interfering with the reproduction of birds by

DDT was banned from use in the U.S> because it was determined that DDT was responsible for interfering with the reproduction of birds by

a. weakening the shells of their eggs
b. causing only female offspring to be produced
c. preventing fertilization of the female
d. none of the above


Answer: a. weakening the shells of their eggs

The end result of the development and implementation of IPM programs since the 1970's has been to reduce the dependency on chemical use while

The end result of the development and implementation of IPM programs since the 1970's has been to reduce the dependency on chemical use while 

a. lowering the incidence of cancer in the U.S.
b. still achieving acceptable pest control
c. still eradicating plant and animal disease in the U.S.
d. using lower amounts of synthetic fertilizers


Answer: b. still achieving acceptable pest control

After 1962, heavy reliance on chemical pest management began to be questions as a result of which of the following?

After 1962, heavy reliance on chemical pest management began to be questions as a result of which of the following?

a. the publication of Rachel Carson's book silent spring
b. pest resurgence and resistance to pesticides
c. concerns over human health from exposure to pesticides
d. all of the above


Answer: d. all of the above

During the period from 1940 to 1972, the United States moved to a major reliance on chemical pesticides. Alternate control strategies were deemphasized, because

During the period from 1940 to 1972, the United States moved to a major reliance on chemical pesticides. Alternate control strategies were deemphasized, because

a. the government told farmers to use chemicals
b. there were no other options besides chemicals
c. the public wanted chemical residues on their fruit, vegetables, and other food products
d. chemical control gave excellent results at a low cost


Answer: d. chemical control excellent results at a low cost

Before the 1940, pesticide were limited to elements and inorganic compounds such as

Before the 1940, pesticide were limited to elements and inorganic compounds such as 

a. sulfur
b. arsenic
c. bordeaux mixture
d. all of the above


Answer: d. all of the above

Although neglected in the past, it is now known that no area of U.S. land is more important to wildlife than

Although neglected in the past, it is now known that no area of U.S. land is more important to wildlife than 

a. grasslands
b. wetlands
c. forests
d. deserts


Answer: b. wetlands

An organism with a low biotic potential

An organism with a low biotic potential 

a. has low fecundity
b. has a slow rate of reproduction
c. may be at risk of extinction
d. all of the above


Answer: d. all of the above

Organisms that are in immediate danger of extinction are classified as

Organisms that are in immediate danger of extinction are classified as 

a. challenged
b. at-risk
c. threatened
d. endangered


Answer: d. endangered

Species that cannot adapt their behaviors or their diets to accommodate changes in their environment

Species that cannot adapt their behaviors or their diets to accommodate changes in their environment

a. are displaying non adaptive behavior
b. are prone to extinction
c. may depend on a single source of food or shelter
d. all of the above


Answer: d. all of the above

The greatest single cause of extinction is

The greatest single cause of extinction is 

a. destruction or modification of habitat
b. illegal hunting
c. climate change
d harsh winters


Answer: a. destruction or modification of habitat

Owls and foxes both try to make use of the available supply of rodents and other small animals. This is

Owls and foxes both try to make use of the available supply of rodents and other small animals. This is 

a. commensalism
b. competition
c. mutualism
d. parasitism


Answer: b. competition

When a plant or animal is in, on, or with another and sharing its food but without either helping it or harming is, the relationship is called

When a plant or animal is in, on, or with another and sharing its food but without either helping it or harming is, the relationship is called 

a. predation
b. commensalism
c. mutualism
d. parasitism


Answer: b. commensalism

You watch a robin catch and eat a worm. You have just watched an example of

You watch a robin catch and eat a worm. You have just watched an example of

a. predation
b. commensalism
c. mutualism
d. parasitism


Answer: a. predation

You have a friend who is really good at math. You are really good at english. Your friend helps you complete your math, and you help your friend complete your english homework. This is an example of

You have a friend who is really good at math. You are really good at english. Your friend helps you complete your math, and you help your friend complete your english homework. This is an example of 

a. predation
b. commensalism
c. mutualism
d. parasitism


Answer: c. mutualism

The relationship between two organisms, either plants or animals, in which one feeds on the other without killing it is called

The relationship between two organisms, either plants or animals, in which one feeds on the other without killing it is called

a. predation
b. commensalism
c. mutualism
d. parasitism


Answer: d. parasitism

Birds and reptiles differ from frogs and toads in terms of the

Birds and reptiles differ from frogs and toads in terms of the 

a. use of eggs for reproduction
b. location of fertilization
c. use of sperm for reproduction
d. all of the above


Answer: b. location of fertilization

Males and female gametes joining together in a single cell is called ____________, and the result is the formation of a __________.

Males and female gametes joining together in a single cell is called ____________, and the result is the formation of a __________. 

a. spermatogenesis, gamete
b. fertilization, zygote
c. reproduction, baby
d. fertilization, gamete


Answer: b. fertilization, zygote

Organisms that tolerate other members of their species and even gather together in groups are said to be

Organisms that tolerate other members of their species and even gather together in groups are said to be 

a. soica organisms
b. herd organisms
c. gregarious
d. none of the above


Answer: c. gregarious

Learned behavior that improve the chances for survival for an organism are called

Learned behavior that improve the chances for survival for an organism are called

a. instinctive behaviors
b. adaptive behaviors
c. conditioned behaviors
d. survival behaviors


Answer: b. adaptive behaviors

Which of the following is a measure of mortality rate

Which of the following is a measure of mortality rate

a. for every 100 elk, five baby elk are born each year
b. there are 10 el per square mile
c. there are 10 elk under 2 years old, five between the age of 2 and 4, and eight more than 4 years old
d. for every 100 elk, five elk die each year


Answer: d. for every 100 elk, five elk die each year

You have a pet bear who loves to eat berries and gophers. Your bear is an example of

You have a pet bear who loves to eat berries and gophers. Your bear is an example of

a. a carnivore
b. a herbivore
c. an omnivore
d. a predator


Answer: c. an omnivore

If i were a carnivore, which of the following would i most likely eat

If i were a carnivore, which of the following would i most likely eat

a. salads
b. bread
c. apples
d. worms


Answer: d. worms

If i were a herbivore, which of the following would i most likely eat

If i were a herbivore, which of the following would i most likely eat

a. chickens
b. eggs
c. nuts and acorns
d. worms


Answer: c. nuts and acorns

In birds, the organ that does the job closely resembling that of teeth would be the

In birds, the organ that does the job closely resembling that of teeth would be the 

a. rumen
b. crop
c. gizzard
d. reticulum


Answer: c. gizzard

An animal that only had access to foods high in fiber but low in nutrient concentration such as grass, twigs, and leaves, would most likely

An animal that only had access to foods high in fiber but low in nutrient concentration such as grass, twigs, and leaves, would most likely

a. be a carnivore
b. be a ruminant
c. have a simple stomach
d. require a minimal amount of this food


Answer: b. be a ruminant

Lack of adequate nutrition may result in

Lack of adequate nutrition may result in

a. decreased reproduction
b. sickness
c. death
d. all of the above


Answer: d. all of the above

During which of the following situations would an animals food requirements be most likely to decline

During which of the following situations would an animals food requirements be most likely to decline

a. extreme cold
b. reproduction
c. spring and summer
d. stress


Answer: c. spring and summer

Which of the following is an example of an instinctive behavior

Which of the following is an example of an instinctive behavior

a. doing calculus
b. suckling by a newborn animal
c. riding a bike
d. reading a book


Answer: b. suckling by a newborn animal

The basic needs of all organisms are

The basic needs of all organisms are

a. food and water
b. shelter
c. space
d. all of the above


Answer: d. all of the above

I am a scientist who investigates the behavior of nesting birds. I am engaged in the science of

I am a scientist who investigates the behavior of nesting birds. I am engaged in the science of 

a. zoology
b. biology
c. botany
d. meteorology


Answer: a. zoology

Every day, i investigate the rate of photosynthesis in roses outdoors. I am engaged in the science of

Every day, i investigate the rate of photosynthesis in roses outdoors. I am engaged in the science of 

a. zoology
b. biology
c. botany
d. meteorology


Answer: c. botany

This type of tree is probably the most important species of tree because of its high productivity and value as construction lumber

This type of tree is probably the most important species of tree because of its high productivity and value as construction lumber

a. sitka spruce
b. maple
c. ponderosa pine
d. douglas fir


Answer: d. douglas fir

Which one of the following events leaves forest lands the most susceptible to soil erosion

Which one of the following events leaves forest lands the most susceptible to soil erosion 

a. hurricane
b. snow storm
c. forest fire
d. change of season from autumn to winter


Answer: c. forest fire

Soils in cold and damp climates that have coarse silica parent material, are acidic, and tend to be light-colored are called

Soils in cold and damp climates that have coarse silica parent material, are acidic, and tend to be light-colored are called

a. alfisols
b. spodosols
c. ultisols
d. illuvials


Answer: b. spodosols

Soils that are slightly acidic, have a B horizon that tends to be high in clay content, and are high is calcium, magnesium, sodium, and potassium are called

Soils that are slightly acidic, have a B horizon that tends to be high in clay content, and are high is calcium, magnesium, sodium, and potassium are called 

a. alfisols
b. spodosols
c. ultisols
d. illuvials


Answer: a. alfisols

Soils that are found in warm, humid climates and generally show evidence of heavy weather action are called

Soils that are found in warm, humid climates and generally show evidence of heavy weather action are called

a. alfisol soil
b. spodosol soils
c. ultisol soils
d. illuvial soils


Answer: c. ultisoil soils

Controlled grounds fires would have what effect on a forest

Controlled grounds fires would have what effect on a forest

a. reduced competition with young trees and shrubs
b. trashed accumulations are kept to a minimum
c. reduced intensity of wildfires
d. all of the above


Answer: d. all of the above

A tree in your yard has become infected with a disease that interferes with radial growth. How might disease affect the growth of your tree

A tree in your yard has become infected with a disease that interferes with radial growth. How might disease affect the growth of your tree

a. the tree would not grow taller
b. the tree would produce strange bulges and lumps
c. the tree would not increase its diameter
d. all of the above


Answer: c. the tree would not increase its diameter

Diseases that are caused by living agents of infection such as bacteria, fungi, and viruses are described as

Diseases that are caused by living agents of infection such as bacteria, fungi, and viruses are described as

a. communicable diseases
b. infectious diseases
c. abiotic diseases
d. biotic diseases


Answer: d. biotic diseases

An area where precipitation is absorbed into the soil to form groundwater is called

An area where precipitation is absorbed into the soil to form groundwater is called

a. an aquifer
b. an infiltration point
c. a watershed
d. none of the above


Answer: c. a watershed

Wood harvested from trees may be chipped, dried, and burned to produce steam for the purpose of generating

Wood harvested from trees may be chipped, dried, and burned to produce steam for the purpose of generating

a. hydroelectric power
b. biomass power
c. solar energy
d. geothermal energy


Answer: b. biomass power

The advantages of using wood for fuel include all of the following except

The advantages of using wood for fuel include all of the following except

a. the production of particulate matter in the smoke
b. it is a renewable resource
c. it tends to be low in sulfur compared to coal
d. it does not contribute to acid precipitation


Answer: a. the production of particulate matter in the smoke

Some benefits provided by forests include all of the following except

Some benefits provided by forests include all of the following except

a. shade and cooler temperatures in the summer
b. increased humidity in the air
c. increased likelihood of flooding
d. increased infiltration of water into the soil


Answer: c. increased likelihood of flooding

How does the forest environment differ from surrounding areas during summer months

How does the forest environment differ from surrounding areas during summer months

a. the forested area contains fewer organisms
b. the forested area has cooler temperatures
c. the forested area if drier
d. the forested area has warmer temperatures


Answer: b. the forested area has cooler temperatures

Which of the following is not one of the layers of a forest

Which of the following is not one of the layers of a forest

a. shrub layer
b. scrub layer
c. canopy
d. forest floor


Answer: b. scrub layer

The importance of forests of North America and the world goes far beyond the production of wood products such as paper, cardboard, lumber, and plywood. Forests are also known to provide

The importance of forests of North America and the world goes far beyond the production of wood products such as paper, cardboard, lumber, and plywood. Forests are also known to provide

a. medicine
b. fuel
c. essential habitat
d. all of the above


Answer: d. all of the above

Squirrels and birds play important roles in

Squirrels and birds play important roles in 

a. protecting trees from predators
b. pruning the leaves and limbs from trees
c. distributing the seeds of trees
d. removing the insects pests from trees


Answer: c. distributing the seeds of trees

Which of the following carries food manufactured in the leaves to the stems, trunk, and roots

Which of the following carries food manufactured in the leaves to the stems, trunk, and roots

a. xylem
b. phloem
c. heartwood
d. cambium


Answer: b. phloem

Which of the following carries water and minerals from the roots and transports it up to the leaves

Which of the following carries water and minerals from the roots and transports it up to the leaves 

a. xylem
b. phloem
c. heartwood
d. cambium


Answer: a. xylem

This area is the most productive forest region and produces approximately 25 percent of the annual U.S. lumber production, 19 percent of the pulpwood production, and 75 percent of the plywood production

This area is the most productive forest region and produces approximately 25 percent of the annual U.S. lumber production, 19 percent of the pulpwood production, and 75 percent of the plywood production

a. pacific coast forest
b. northern coniferous forest
c. northern hardwoods forest
d. bottomland hardwoods forest


Answer: a. pacific coast forest

This forest region occurs mostly along the Mississippi River. It contains mostly hardwood trees and is often among the most productive of U.S. forests because of the high fertility of soil. Oak, gum, tupelo, and cypress are the major hardwood species found here.

This forest region occurs mostly along the Mississippi River. It contains mostly hardwood trees and is often among the most productive of U.S. forests because of the high fertility of soil. Oak, gum, tupelo, and cypress are the major hardwood species found here.

a. tropical forest
b. northern coniferous forest
c. northern hardwoods forest
d. bottomland hardwoods forest


Answer: d. bottomland hardwoods forest

This forest region reaches from southeastern Canada through New England to the northern Appalachian Mountains and extends westward beyond the Great Lakes region. The region is populated by several important hardwood species including beech, maple, hemlock, and birch trees.

This forest region reaches from southeastern Canada through New England to the northern Appalachian Mountains and extends westward beyond the Great Lakes region. The region is populated by several important hardwood species including beech, maple, hemlock, and birch trees.

a. tropical forest
b. northern coniferous forest
c. northern hardwood forest
d. bottomland hardwoods forest


Answer: c. northern hardwood forest

This forest region is located in southern Florida, southeastern Texas, and Hawaii and makes up the smallest forest region. This area contains such trees as mahogany, mangrove, bay, ohia, boa, tree fern, kuki, tropical ash, mamani, and eucalyptus.

This forest region is located in southern Florida, southeastern Texas, and Hawaii and makes up the smallest forest region. This area contains such trees as mahogany, mangrove, bay, ohia, boa, tree fern, kuki, tropical ash, mamani, and eucalyptus.

a. tropical forest
b. northern coniferous forest
c. northern hardwoods forest
d. bottomland hardwoods forest


Answer: a. tropical forest

This forest region is characterized by swamps, marshes, rivers, and lakes and has a cold climate. It is the largest region in North America, extending across Canada and Alaska. The most dominant type of tree is the evergreen.

This forest region is characterized by swamps, marshes, rivers, and lakes and has a cold climate. It is the largest region in North America, extending across Canada and Alaska. The most dominant type of tree is the evergreen.

a. tropical forest
b. northern coniferous forest
c. northern hardwoods forest
d. bottomland hardwoods forest


Answer: b. northern coniferous forest

Which of the following pairings is correct

Which of the following pairings is correct

a. evergreen, hardwood
b. evergreen, lose their leaves
c. deciduous, hardwood
d. deciduous, conifers


Answer: c. deciduous, hardwood

Conifers are evergreen trees that

Conifers are evergreen trees that 

a. produce seeds in cones
b. have needle-like leaves
c. produce lumber called softwood
d. all of the above


Answer: d. all of the above

In simple terms, there are only two ways to conserve water: stops using water for some purposes, and

In simple terms, there are only two ways to conserve water: stops using water for some purposes, and 

a. use water only at night
b. use water more efficiently
c. use water only for drinking
d. used bottled water


Answer: b. use water more efficiently

Although it is often found in municipal water supplies, to be considered safe, water used for fish culture should not contain any residual

Although it is often found in municipal water supplies, to be considered safe, water used for fish culture should not contain any residual 

a. carbon dioxide
b. sewage
c. chlorine
d. dissolved oxygen


Answer: c. chlorine

Hydrogen sulfide occurs in ponds as a result of _______ by bacteria in mud.

Hydrogen sulfide occurs in ponds as a result of _______ by bacteria in mud.

a. anaerobic decomposition
b. aerobic respiration
c. aeration
d. ammonification


Answer: a. anaerobic decomposition

Aerating water to improve its oxygen content drives off excess

Aerating water to improve its oxygen content drives off excess

a. nutrients
b. phosphates
c. nitrates
d. carbon dioxide


Answer: d. carbon dioxide

Substances that help water to resist changes in pH are known as

Substances that help water to resist changes in pH are known as

a. salts
b. ions
c. buffers
d. trace elements


Answer: c. buffers

Although most inland ponds contain substantial concentrations of other ionic compounds such as sulfate and carbonate, the principle ionic compound in seawater is

Although most inland ponds contain substantial concentrations of other ionic compounds such as sulfate and carbonate, the principle ionic compound in seawater is 

a. nitrate
b. sodium chloride
c. ammonium
d. potassium chloride


Answer: b. sodium chloride

The ability of a substance to dissolve in water is known as

The ability of a substance to dissolve in water is known as 

a. solubility
b. water hardness
c. turbidity
d. salinity


Answer: a. solubility

Water's oxygen-holding capacity declines when water

Water's oxygen-holding capacity declines when water

a. warms
b. is raised to higher altitudes
c. becomes more salsine
d. all of the above


Answer: d. all of the above

When aquatic temperatures change more than 2 to 3F (1 to 2C) in 24 hours, aquatic organisms can experience

When aquatic temperatures change more than 2 to 3F (1 to 2C) in 24 hours, aquatic organisms can experience

a. temperature inversions
b. stratification
c. water hardness
d. thermal stress


Answer: d. thermal stress

A pH of 10 would be

A pH of 10 would be 

a. alkaline
b. acidic
c. neutral
d. none of the above


Answer: a. alkaline

A scientist is studying a stream in your community. She tells you that the water in the stream is slightly acidic. This stream most likely has a pH of

A scientist is studying a stream in your community. She tells you that the water in the stream is slightly acidic. This stream most likely has a pH of

a. 1
b. 6
c. 7
d. 11


Answer: b. 6

Of all the naturally occurring substances, water has the highest ________, helping it to resist rapid temperature changes

Of all the naturally occurring substances, water has the highest ________, helping it to resist rapid temperature changes

a. ionization level
b. heat of vaporization
c. melting point
d. specific heat


Answer: d. specific heat

Organisms that are used to determine the health of an environment are called

Organisms that are used to determine the health of an environment are called

a. native species
b. indicator species
c. signal species
d. biosensitive species


Answer: b. indicator species

Healthy watersheds help provide protection against erosion and

Healthy watersheds help provide protection against erosion and

a. pollution
b. global warming
c. infiltration
d. flooding


Answer: d. flooding

A watershed that is forested is superior to other watersheds because

A watershed that is forested is superior to other watersheds because

a. it has economic value in the form of timber
b. trees tend to slow the melting of snow, allowing it to be absorbed into the soil instead of running off the soil surface
c. trees are more asthetically appealing
d. all of the above


Answer: b. trees tend to slow the melting of snow, allowing it to be absorbed into the soil instead of running off the soil surface

A large land area in which water from rain and snow is absorbed into the soil to emerge as springs of water or artesian wells at lower elevations is called

A large land area in which water from rain and snow is absorbed into the soil to emerge as springs of water or artesian wells at lower elevations is called 

a. an aquifer
b. an infiltration zone
c. a watershed
d. a floodplain


Answer: c. a watershed

Solar energy and the force of gravity drive the

Solar energy and the force of gravity drive the 

a. carbon cycle
b. water cycle
c. nitrogen cycle
d. oxygen cycle


Answer: b. water cycle

Large amounts of the Earth's water supply are stored for long periods of time. This storage occurs in

Large amounts of the Earth's water supply are stored for long periods of time. This storage occurs in 

a. aquifers
b. glaciers
c. polar ice caps
d. all of the above


Answer: d. all of the above

Energy in an ecosystem that is passed from one organism to another in the form of food is called

Energy in an ecosystem that is passed from one organism to another in the form of food is called

a. a food chain
b. an energy pathway
c. a feeding relationship
d. a trophic chain


Answer: a. a food chain

Most of the water on earth is

Most of the water on earth is 

a. tidewater
b. freshwater
c. saltwater
d. potable water


Answer: c. saltwater

Carbonate, bicarbonate, sulfate, and chloride are negatively charged ions, which are also called

Carbonate, bicarbonate, sulfate, and chloride are negatively charged ions, which are also called

a. cations
b. anions
c. neutrons
d. none of the above


Answer: b. anions

Calcium, potassium, magnesium, and sodium are positively charged ions, which are also called

Calcium, potassium, magnesium, and sodium are positively charged ions, which are also called 

a. cations
b. anions
c. neutrons
d. none of the above


Answer: a. cations

Although there seems to be a sufficient volume of water in most areas of the world, supplies of safe water are generally insufficient because of

Although there seems to be a sufficient volume of water in most areas of the world, supplies of safe water are generally insufficient because of 

a. misuse and poor management
b. waste
c. pollution
d. all of the above


Answer: d. all of the above

Another name for drinkable water is

Another name for drinkable water is 

a. bottled
b. fresh
c. potable
d. filtered


Answer: c. potable

Which of the following are involved in the production of acid rain

Which of the following are involved in the production of acid rain 

a. exhaust gases from cars and trucks are released into the air
b. rain combines with pollutants in the atmosphere
c. factories and electrical power plants that burn coal and petroleum products also emit large amounts of polluted gas into the atmosphere
d. all of the above


Answer: d. all of the above

What is the name for a human-made pond in which wastewater is stored for three or four weeks to allow bacteria and algae to metabolize dissolved nutrients and many of the solids in sewage

What is the name for a human-made pond in which wastewater is stored for three or four weeks to allow bacteria and algae to metabolize dissolved nutrients and many of the solids in sewage

a. reservoir
b. lagoon
c. sewage marsh
d. none of the above


Answer: b. lagoon

Which law was first passed in 1972, and attempts to clean wastewater enough that we will be able to swim and fish in it

Which law was first passed in 1972, and attempts to clean wastewater enough that we will be able to swim and fish in it 

a. clean water act
b. safe drinking water act
c. clean air act
d. pollution prevention act


Answer: a. clean water act

Genetic engineering is the branch of science that deals with

Genetic engineering is the branch of science that deals with

a. the complex relationships among living things and their environments
b. political activism on behalf of some aspect of the environment
c. modifying the genes of bacteria to enable them to perform beneficial tasks such as ingesting and breaking down pesticides and other chemicals
d. the study of interactions and relationships among living organisms and the physical and chemical features of the surroundings in which they live


Answer: c. modifying the genes of bacteria to enable them to perform beneficial tasks such as ingesting and breaking down pesticides and other chemicals

The science of ___________ may be used to develop important environmental applications by altering the genetic makeup of living organisms.

The science of ___________ may be used to develop important environmental applications by altering the genetic makeup of living organisms.

a. nanotechnology
b. ecology
c. astrology
d. biotechnology


Answer: d. biotechnology

Conservationists have found that forests can be used for recreation as well as for the production of wood, and a lake can be used as a water reservoir, for fishing, and as a flood-control measure. This concept is known as

Conservationists have found that forests can be used for recreation as well as for the production of wood, and a lake can be used as a water reservoir, for fishing, and as a flood-control measure. This concept is known as

a. preservation
b. multiple use of resources
c. resource management
d. forestry


Answer: b. multiple use of resources

The tiny soil particles that become suspended in water as it flows over exposed soil surfaces is known as

The tiny soil particles that become suspended in water as it flows over exposed soil surfaces is known as 

a. sewage
b. compost
c. silt
d. humus


Answer: c. silt

The greatest source of water pollution is known to humans is

The greatest source of water pollution is known to humans is 

a. erosion
b. sewage
c. industrial waste
d. pesticide use


Answer: a. erosion

The practice of protecting soil from the destructive forces of wind and water is known as

The practice of protecting soil from the destructive forces of wind and water is known as 

a. farming
b. soil conversation
c. preservation
d. erosion science


Answer: b. soil conservation

Which of the following groups believe in using nature to produce long-range benefits for people while taking good care of our natural resources

Which of the following groups believe in using nature to produce long-range benefits for people while taking good care of our natural resources

a. ecologist
b. environmental scientists
c. preservationists
d. conservationists


Answer: d. conservationists

Which of the following phrases is a goal of conservation

Which of the following phrases is a goal of conservation

a. protecting natural resources against harm and waste
b. the practical use of resources for today and for the future
c. using less of a resource than is available so that future generations may also benefit from its use
d. all of the above


Answer: d. all of the above

What human activity has drastically increased the carrying capacity of the world for humans by increasing the amount of food that can be produced on the land?

What human activity has drastically increased the carrying capacity of the world for humans by increasing the amount of food that can be produced on the land?

a. passing legislation to clean up water
b. recycling
c. forestry
d. farming


Answer: d. farming

The ability of an ecosystem to provide food and shelter for a given population level is known as

The ability of an ecosystem to provide food and shelter for a given population level is known as 

a. the population level
b. a community
c. the carrying capacity
d. none of the above


Answer: c. the carrying capacity

The number of a given species of plant or animal in a given area at a particular point in time is known as

The number of a given species of plant or animal in a given area at a particular point in time is known as 

a. the population level
b. a community
c. the carrying capacity
d. none of the above


Answer: a. the population level

Why is soil considered an exhaustible resource?

Why is soil considered an exhaustible resource?

a. soil is constantly being formed by nature
b. nature makes soil so slowly
c. we can improve existing soil
d. none of the above


Answer: b. nature makes soil so slowly

Conservation of nonrenewable resources can be accomplished by all of the following except

Conservation of nonrenewable resources can be accomplished by all of the following except

a. recycling materials reduce the necessity for extracting new materials
b. reducing the rate at which these resources are used in order to make them last longer
c. avoiding dumping sewage into our water supply
d. learning how to use less and finding more of the resource


Answer: c. avoiding dumping sewage into our water supply

Another name for a nonrenewable resource is

Another name for a nonrenewable resource is 

a. an nonexhaustible resource
b. a renewable resource
c. an exhaustible resource
d. none of the above


Answer: c. an exhaustible resource

Many of our natural resources exist in finite quantities. Those limited resources that cannot be replaced or reproduced are known as

Many of our natural resources exist in finite quantities. Those limited resources that cannot be replaced or reproduced are known as 

a. nonexhaustible resources
b. renewable resources
c. nonrenewable resources
d. none of the above


Answer: c. nonrenewable resources

Natural resources that can be replaced by human efforts are considered

Natural resources that can be replaced by human efforts are considered

a. nonexhaustible resources
b. renewable
c. nonrenewable
d. exhaustible


Answer: b. renewable

Natural resources that can last forever regardless of human activities

Natural resources that can last forever regardless of human activities 

a. inexhaustible resources
b. renewable resources
c. nonrenewable resources
d. exhaustible


Answer: a. inexhaustible resources

Which of the following are examples of inexhaustible resources

Which of the following are examples of inexhaustible resources

I. water
II. air
III. oil


a. I only
b. II only
c. I and II only
d. I, II, and III only


Answer: c. I and II only

In response to the creation of severely damaged environments such as nuclear waste storage sites, legislation was passed to create a

In response to the creation of severely damaged environments such as nuclear waste storage sites, legislation was passed to create a 

a. catalytic converter
b. superfund
c. national park
d. carrying capacity


Answer: b. superfund

The passage of legislation that requires a catalytic converter to be placed on a nation's new cars resulted in all of the following except

The passage of legislation that requires a catalytic converter to be placed on a nation's new cars resulted in all of the following except 

a. reduction in acid precipitation caused by vehicle exhaust gases
b. removal of pollutants from the exhaust gases of vehicles
c. creation of a superfund to pay for cleaning up damaged environments
d. improvement of ecosystems in proximity to large population centers


Answer: c. creation of a superfund to pay for cleaning up damaged environments

Management of natural resources implies that we must take an active role in caring for the

Management of natural resources implies that we must take an active role in caring for the 

a. government
b. environment
c. population
d. community


Answer: b. environment

Our ____________, composed of soil, water, plants, animals, energy, minerals, and atmosphere, has provided everything for our survival.

Our ____________, composed of soil, water, plants, animals, energy, minerals, and atmosphere, has provided everything for our survival.

a. government
b. environment
c. population
d. community


Answer: b. environment

Which of the following is or are most responsible for acid precipitation

Which of the following is or are most responsible for acid precipitation

I. exhaust fumes from automobiles
II. burning by products
III. burying solid wastes in landfills


a. I only
b. II only
c. I and II
d. I, II, and III


Answer: c. I and II

Which of the following describes why there is no such thing as "throwing something away?"

Which of the following describes why there is no such thing as "throwing something away?"

a. law of conservation of matter
b. first law of conservation
c. second law of conservation
d. law of gravity


Answer: a. law of conservation of matter

Some individuals are of the opinion that natural resources should be preserved from use by people. Their efforts have resulted in land set aside for national parks, national monuments, and wilderness areas in which timber harvests and some other human activities are no longer allowed. These people are called

Some individuals are of the opinion that natural resources should be preserved from use by people. Their efforts have resulted in land set aside for national parks, national monuments, and wilderness areas in which timber harvests and some other human activities are no longer allowed. These people are called

a. conversationists
b. preservationists
c. ecologists
d. environmentalists


Answer: b. preservationists

The law of conservation of matter states that

The law of conservation of matter states that 

a. nothing is wasted in nature
b. matter may change from one form to another
c. matter cannot be created or destroyed by natural or chemical processes
d. all of the above


Answer: d. all of the above

Which of the following consequences result from petroleum leaking or spilling into the environment?

Which of the following consequences result from petroleum leaking or spilling into the environment?

I. Polluted groundwater, contaminated drinking water, and destroyed plant and animal life.
II. Poisonous fumes that create potential fire hazards
III. Acid and precipitation


a. I only
b. II only
c. I and II
d. I, II, and III


Answer: c. I and II

Which of the following is not a petroleum product

Which of the following is not a petroleum product 

a. silt
b. diesel
c. heating oil
d. gasoline


Answer: a. silt

An oily, flammable liquid occurs naturally in large underground deposits is

An oily, flammable liquid occurs naturally in large underground deposits is 

a. tar
b. sterno
c. petroleum
d. vaseline


Answer: c. petroleum

Which of the following is not classified as surface water?

Which of the following is not classified as surface water?

a. a river
b. a pond
c. an aquifer
d. a lake


Answer: c. an aquifer

If i wanted to kill a family of rats and mice in my house, i would use

If i wanted to kill a family of rats and mice in my house, i would use 

a. a herbicide
b. a rodenticide
c. an insecticide
d. a fungicide


Answer: b. a rodenticide

If i wanted to remove unwanted grass, weeds, flowers, or bushes around my yard, i would use

If i wanted to remove unwanted grass, weeds, flowers, or bushes around my yard, i would use 

a. a herbicide
b. a rodenticide
c. an insecticide
d. a fungicide


Answer: a. a herbicide

If i wanted to remove ants, beetles, termites, and flies from my house, i would use

If i wanted to remove ants, beetles, termites, and flies from my house, i would use

a. a herbicide
b. rodenticide
c. an insecticide
d. a fungicide


Answer: c. an insecticide

We used to think that once solid wastes were placed in landfills, they went away. Now we understand that

We used to think that once solid wastes were placed in landfills, they went away. Now we understand that 

a. highly toxic liquids often ooze out of landfills and pollute the water and soil in local areas
b. material buried in landfills tends to remain for long periods of time
c. solid wastes in landfills do not break down as quickly as many people expected
d. all of the above


Answer: d. all of the above.

Solid waste include

Solid waste include 

a. excessive silt and topsoil that washes into rivers
b. materials that are fathered by municipal trash and garbage collectors for disposal
c. by-products of mining or industrial processes and manufacturing activities
d. chemicals that are used to control pests such as insects, rodents, and weeds.


Answer: b. materials that are fathered by municipal trash and garbage collectors for disposal

Industrial waste includes all of the following except

Industrial waste includes all of the following except

a. harmful chemicals and poisonous metallic compounds
b. acids and other caustic materials
c. by-products of mining or industrial processes and manufacturing activities
d. materials that are gathered by municipal trash and garbage collectors for disposal


Answer: d. materials that are gathered by municipal trash and garbage collectors for disposal

A condition in which a harmful material comes in contact with a life-sustaining resource such as water or soil is called

A condition in which a harmful material comes in contact with a life-sustaining resource such as water or soil is called

a. pollution
b. poisoning
c. erosion
d. acid precipitation


Answer: a. pollution

Which of the following terms is least closely related to the others?

Which of the following terms is least closely related to the others?

a. pond
b. lake
c. aquifer
d. stream


Answer: c. aquifer

The biosphere II project

The biosphere II project

a. was constructed to see if humans could create a controlled, balanced, and sustainable living environment.
b. was an experimental prototype of an environment to sustain human life on the moon or another planet
c. showed scientists that a balanced self-sustaining ecosystem is difficult to recreate.
d. all of the above


Answer: d. all of the above

Although rare, when an ecosystem supports all of the living communities within it an nonliving resources are maintained at constant levels, it is said to be

Although rare, when an ecosystem supports all of the living communities within it an nonliving resources are maintained at constant levels, it is said to be

a. stratified
b. diversified
c. managed
d. balanced


Answer: d. balanced

When all of the ecosystems of the Earth are considered as a whole, we call it

When all of the ecosystems of the Earth are considered as a whole, we call it 

a. a population
b. a community
c. an ecosystem
d. a biosphere


Answer: d. a biosphere

Which of the following would not be considered a terrestrial organism?

Which of the following would not be considered a terrestrial organism?

a. bluebird
b. fox
c. rattlesnake
d. goldfish


Answer: d. goldfish

Which of the following comes closest to describing an ecosystem?

Which of the following comes closest to describing an ecosystem?

a. a wolf
b. a pack of wolves
c. a pack of wolves, a herd of deer, and a cluster of pine trees
d. a pack of wolves, a herd of deer, a cluster of pine trees, and all the water, soil, and rocks in a particular valley in northern Minnesota.


Answer: d. a pack of wolves, a herd of deer, a cluster of pine trees, and all the water, soil, and rocks in a particular valley in northern Minnesota.

An organism is

An organism is 

a. a group of similar organisms that is found in a defined area
b. an individual plant, animal, or other living thing.
c. all of the populations or organisms that live within a defined area.
d. any partially self-contained environmental and living system


Answer: b. an individual plant, animal, or living thing.

Unlike waste materials generated by plants and animals, some human made materials

Unlike waste materials generated by plants and animals, some human made materials

a. are not easily degraded when they are no longer useful
b. may cause pollution when they come in contact with life-sustaining resources
c. may injure or damage organisms that depend on these life-sustaining resources that become polluted.
d. all of the above


Answer: d. all of the above

Water that is found in springs, streams, rivers, reservoirs, ponds, lakes, and oceans describes

Water that is found in springs, streams, rivers, reservoirs, ponds, lakes, and oceans describes

a. a community
b. subsurface surface water
c. surface water
d. terrestrial environments


Answer: c. surface water

Which of the following would NOT be found in an aquatic environment?

Which of the following would NOT be found in an aquatic environment?

a. lions
b. minnows
c. crabs
d. starfish


Answer: a. lions

All living organisms are dependent for survival on

All living organisms are dependent for survival on 

I. sunlight
II. Nutrients from soil.
III. water


a. I only
b. II only
c. I and II only
d. I, II, and III


Answer: d. I, II, and III

Which of the following best describes a community?

Which of the following best describes a community?

a. a group of wolves
b. a group of wolves and a group of deer living in a cluster of trees
c. a group of canaries
d. a city


Answer: b. a group of wolves and a group of deer living in a cluster of trees

Scientists who study ecology organize living things into a set of classifications. Which of the following lists describes the organization of life on Earth from the least to the most inclusive.

Scientists who study ecology organize living things into a set of classifications. Which of the following lists describes the organization of life on Earth from the least to the most inclusive. 

a. biosphere-ecosystem-population-community-organism
b. organism-community-population-ecosystem-biosphere
c. biosphere-population-ecosystem-community-organism
d. organism-population-community-ecosystem-biosphere


Answer: d. organism-population-community-ecosystem-biosphere

The branch of science dealing with the complex relationships among living things and their environments is called

The branch of science dealing with the complex relationships among living things and their environments is called

a. biology
b. scientology
c. ecology
d. geology


Answer: c. ecology

Which of the following is NOT a pursuit of an ecologist?

Which of the following is NOT a pursuit of an ecologist?

a. observation
b. making value judgements
c. objective interpretation of data
d. testing and measurement


Answer: b. making value judgments