Which of the following is a way that humans alter the water cycle?
A)withdraw large quantities from streams, lakes and aquifers
B)alter weather patterns by clearing vegetation
C)all of these choices
D)increase flooding by disturbing natural flood controls
E)increase runoff by clearing vegetation from the land
Answer: C
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AP Environmental Science Chapter 3
- Much of the current tropical rainforest biomes are experiencing a rapid rate of decreasing forests cover, due to logging and conversion of forests into agricultural land. Scientists estimate, if this trend continues, that the loss of forested land would
- Also known as mineralization, this process is carried out by decomposers and returns nutrients in organic matter back to the soil
- Small inputs of this substance, commonly a limiting factor in aquatic ecosystems, can result in algal blooms and dead zones.
- Which micronutrient is required by humans in the largest amounts?
- Which of the following would NOT be an abiotic limiting factor?
- The major reservoirs of nitrogen and sulfur in the biosphere are correctly identified by which of the following?
- Which of the following is NOT true regarding the Greenhouse Effect?
- Organisms live within a range of tolerance that determines their habitat. Which of the conditions below is NOT a range of tolerance?
- High quality energy is constantly
- The most important factor in determining which biome is found in a particular area is
- Complex feeding patterns for consumers in an ecosystem are called
- Fragmenting one large park or preserve into many small parks with human habitation in between them is most likely to lead to which of the following?
- Which of the following is a green house gas that is emitted into the atmosphere by transpiration?
- Organisms that complete the final breakdown and recycling of organic materials from the remains of all organisms are the
- After a severe drought, the productivity in an ecosystem took many years to return to pre-drought conditions. This observation indicates that the ecosystem has
- All of the following gases make a significant contribution to the natural greenhouse effect except
- This process has plants converting inorganic nitrogen compounds into organic compounds, such as amino acids
- Most of the energy input in a food chain is
- Which of the following has the LEAST net primary productivity (NPP)?
- Large ecological regions with characteristic types of natural vegetation and distinctive animals are called
- Which of the activities listed below is NOT an important ecological role of insects?
- The percentage of usable energy transferred as biomass from one trophic level to another is known as
- Which of the following is a green house gas emitted by cattle?
- Which cycle has a direct effect on the natural greenhouse effect?
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