Which of the following is an environmental advantage

7. Which of the following is an environmental advantage of no-till agriculture?
(a) The use of herbicides improves the stability of the soil.
(b) Migratory bird populations are reduced.
(c) The undisturbed soil is less susceptible to erosion.
(d) The crop residues reduce the soil profile.
(e) The concentration of CO
2
in the fields is increased.
8. Which of the following practices is not a part of integrated pest management?
9. Farmers who practice organic agriculture have less of an impact on the environment than farmers who
practice industrial agriculture because they
10. Critics of using genetically modified organisms as food crops warn of which of the following
dangers?
I Introduction of new allergens into the food supply
II Loss of genetic diversity in food crops
III Decreases in food production worldwide
11. Concentrated animal feeding operations (CAFOs) can best be described as
(a) facilities where a large number of animals are housed and fed in a confined space .
(b) a method of producing more meat at a higher cost.
(c) a means of producing great quantities of manure to fertilize fields organically.
(d) an experimental plan to test the effectiveness of antibiotics.
(e) the storing and compacting of grain for use as a nutrient supplement for cattle.
12. Which of the following is not an environmental or health problem that has been associated with
CAFOs?

13. The data presented on page 307, compiled by the FAO, describe world fish production from 1950 to
2003. Based on these data, which of the following statements best describes the global trend in fish
production?