The individual matters in terms of what can be done to help reduce water pollution. All of the following are things we can do, except

The individual matters in terms of what can be done to help reduce water pollution. All of the following are things we can do, except

a. Fertilize gardens and lawns with manure or compost instead of fertilizers.
b. Minimize use of pesticides.
c. Compost food waste.
d. Do not flush unwanted medicines down the toilet.
e. Buy commercially produced foods.

Answer: E

Waterless, odorless composting toilet systems have all of the following advantages, except

Waterless, odorless composting toilet systems have all of the following advantages, except

a. converts human fecal material to soil-like fertilizer supplement
b. removes toxic and hazardous chemicals
c. saves large amounts of water
d. decreases energy used to pump and purify water
e. cheaper to install and maintain

Answer: B

Which of the following types of sewage treatment are properly matched?

Which of the following types of sewage treatment are properly matched?

a. primarybiological process
b. secondarymechanical process
c. advanced physical and chemical processes
d. secondarychemical process
e. primarychemical process

Answer: C

In a septic tank system, which of the following is not true?

In a septic tank system, which of the following is not true?

a. Wastewater is pumped into a settling tank.
b. Grease and oil rise to the top in the tank.
c. Solids are decomposed by bacteria.
d. Bacteria-treated waste is discharged in an absorption field.
e. After leaving the absorption field, wastewater is cleaned and can be used again for human consumption.

Answer: E

The Clean Water Act could be strengthened by all of the following strategies, except

The Clean Water Act could be strengthened by all of the following strategies, except

a. prevention and control of toxic water pollution
b. more funding for integrated airshed and watershed planning
c. allowing citizens to bring lawsuits to ensure that water pollution laws are enforced
d. establishing national effluent standards
e. requiring states to do a better job of monitoring and enforcing water pollution laws

Answer: D

About ____ of U.S. lakes were tested unsafe for fishing, swimming, and other recreational uses.

About ____ of U.S. lakes were tested unsafe for fishing, swimming, and other recreational uses.

a. 25%
b. 45%
c. 65%
d. 75%
e. 85%

Answer: B