ENSC EXAM 3 UPDATED ACTUAL QUESTIONS AND
CORRECT ANSWERS
Question:
1. CONTOUR PLOWING AND STRIP FARMING ARE METH- ODS DESIGNED TO:
Answer:
Prevent water and soil loss
Question:
2. Which is the following are forms of chemical deterioration of soil?
Answer:
Salinization and acidification
Question:
3. Alfalfa and clover are two legumes commonly planted as cover crops after the cash crop is harvested.
Besides providing roots that will help keep soil in place, what would make these plants good cover crops?
Answer:
Being legumes, they have a symbiosis with nitrogen-fixing bacteria to add nitrogen to the soil.
Question:
4. Studies of topsoil erosion on Iowa farmland show that as much as 50 metric tons are lost per hector
during winter and spring rains. This loss is due to the loss of millimeters of soil from across the entire
surface of the fields. Which type of erosion would this be?
Answer:
Sheet or rill erosion
Question:
5. Which is a disadvantage or conservation tilage method?
Answer:
Increased pest and weeds
Question:
6. Half of the coal used in the united states comes from this extraction process:
Answer:
Strip mining
Question:
7. Which environmental impact would not be a result of pacer mining?
Answer:
Contamination of underground aquifers
Question:
8. Pressurized fluid injected into a well is used in mining processes called:
Answer:
Fracking
, Question:
9. Which resource has the highest recycling rate?
Answer:
Aluminum
Question:
10. Which of the following is not a result of mountaintop removal mining?
Answer:
It has increased the amount of cleared land available for development after the mine closes.
Question:
11. In carrying out the policy cycle, which of the following groups would probably use intensive media
campaigns or even stage a protest?
Answer:
Public interest groups
Question:
12. The case of the president of a Colorado company who was sentenced to 14 years in prison for
knowingly contaminating the water table is an example of a:
Answer:
Criminal law case
Question:
13. This policy aimed to make waters healthy enough to support propagation of fish and shellfish that
could be consumed by humans and low in contaminants so that they were safe for swimming and
recreation.
Answer:
The Clean Water Act (1972)
Question:
14. Which of the following is not a problem associated with international agreements?
Answer:
The international court affects the sovereignty of noncompliant nations.
Question:
15. The National Environmental Policy Act (NEPA) requires the government to take the least
environmentally harmful option in any decision. True or False
Answer:
False
Question:
16. The Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) is also
known as
Answer:
the Superfund Act.
CORRECT ANSWERS
Question:
1. CONTOUR PLOWING AND STRIP FARMING ARE METH- ODS DESIGNED TO:
Answer:
Prevent water and soil loss
Question:
2. Which is the following are forms of chemical deterioration of soil?
Answer:
Salinization and acidification
Question:
3. Alfalfa and clover are two legumes commonly planted as cover crops after the cash crop is harvested.
Besides providing roots that will help keep soil in place, what would make these plants good cover crops?
Answer:
Being legumes, they have a symbiosis with nitrogen-fixing bacteria to add nitrogen to the soil.
Question:
4. Studies of topsoil erosion on Iowa farmland show that as much as 50 metric tons are lost per hector
during winter and spring rains. This loss is due to the loss of millimeters of soil from across the entire
surface of the fields. Which type of erosion would this be?
Answer:
Sheet or rill erosion
Question:
5. Which is a disadvantage or conservation tilage method?
Answer:
Increased pest and weeds
Question:
6. Half of the coal used in the united states comes from this extraction process:
Answer:
Strip mining
Question:
7. Which environmental impact would not be a result of pacer mining?
Answer:
Contamination of underground aquifers
Question:
8. Pressurized fluid injected into a well is used in mining processes called:
Answer:
Fracking
, Question:
9. Which resource has the highest recycling rate?
Answer:
Aluminum
Question:
10. Which of the following is not a result of mountaintop removal mining?
Answer:
It has increased the amount of cleared land available for development after the mine closes.
Question:
11. In carrying out the policy cycle, which of the following groups would probably use intensive media
campaigns or even stage a protest?
Answer:
Public interest groups
Question:
12. The case of the president of a Colorado company who was sentenced to 14 years in prison for
knowingly contaminating the water table is an example of a:
Answer:
Criminal law case
Question:
13. This policy aimed to make waters healthy enough to support propagation of fish and shellfish that
could be consumed by humans and low in contaminants so that they were safe for swimming and
recreation.
Answer:
The Clean Water Act (1972)
Question:
14. Which of the following is not a problem associated with international agreements?
Answer:
The international court affects the sovereignty of noncompliant nations.
Question:
15. The National Environmental Policy Act (NEPA) requires the government to take the least
environmentally harmful option in any decision. True or False
Answer:
False
Question:
16. The Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) is also
known as
Answer:
the Superfund Act.
