1. Worldwide, the top use of water is for A. drinking water. B. industry. C. rec

Question

1. Worldwide, the top use of water is for
A. drinking water.
B. industry.
C. recreation.
D. agriculture.

2. What two land uses result in substantial wetland loss in the United States?
A. rural development and forestry
B. urban development and agriculture
C. national parks and forestry
D. military bases and rangeland grazing

3. What two activities use the most water for a typical North American family of four?
A. bathing and cooking
B. dishes and drinking
C. lawns and toilets
D. laundry and car washing

4. In the United States and Europe, the top use of water is for
A. industry.
B. agriculture.
C. recreation.
D. drinking water.

6. Lead levels fell by 94% in North America between 1982 and 2002 due to the
A. elimination of lead paint.
B. elimination of leaded gasoline.
C. mandatory testing of all children at 9 months of age.
D. introduction of calcium-enriched milk.

7. Sulfur dioxide levels in the United States have _____ since 1970.
A. decreased by 30%
B. increased by 30%
C. remained constant
D. climbed to 157%

8. Which of the following is an adverse health effect from air pollution?
A. bronchial inflammation
B. allergic reactions
C. eye irritation
D. All of these are correct

9. Who ultimately pays for the changes mandated by the 1990 Clean Air Act?
A. utility companies
B. oil companies
C. the federal government
D. consumers

10. Why is carbon monoxide dangerous?
A. It results in an increase in the ozone hole in the stratosphere.
B. It binds with hemoglobin, reducing the blood's oxygen carry-capacity.
C. It combines with oxygen to form carbon dioxide.
D. It is carcinogenic.

11. The most common method of waste disposal is
A. incineration.
B. source reduction.
C. burying in landfills.
D. recycling.

12. Future management of municipal solid waste will be an integrated approach involving
A. landfilling.
B. incineration.
C. source reduction.
D. recycling.
E. All of these are correct.

13. The purpose of state "bottle bills" is
A. to reduce the amount of one-time-use beverage containers.
B. to raise tax money to pay for waste disposal.
C. to reduce the air pollution from the manufacture of plastic bottles.
D. All of these are correct.

14. The major problem with recycling plastics is
A. the lack of steady supply.
B. the inability to mix plastics.
C. the lack of current markets.
D. the taxes imposed on the recycled product.

15. In addition to keeping wastes from entering a landfill, composting also
A. adds bulk to soil.
B. increases porosity of the soil.
C. adds nutrients to the soil
D. All of these are correct.
E. Increases porosity of the soil and adds nutrients to the soil are correct.

16. Many states now ban the disposal of household computer screens in landfills and incinerators because
A. they contain large amounts of lead, cadmium, and mercury.
B. they take up too much room.
C. they can not be composted.
D. they release chlorofluorocarbons into the atmosphere.

17. The major producers of hazardous waste are
A. agriculture, municipalities, and chemical industries.
B. mining companies, municipalities, and chemical industries.
C. mining companies, power generating companies, and chemical and petrochemical industries.
D. None of these are correct.

18. Most toxic waste comes from
A. chemical and petroleum industries.
B. agriculture and forestry practices.
C. national parks and recreation areas.
D. military and wilderness areas.

19. The type of chemical most routinely emitted from industrial sources is
A. carcinogens.
B. mutagens.
C. corrosive substances.
D. greenhouse gases.

20. The two most common methods of hazardous waste disposal are
A. incineration and land disposal.
B. source reduction and incineration.
C. recycling and incineration.
D. recycling and land disposal.

Explanation / Answer

1) D) Agriculture

70% of water for agrculture, 20% for industry and 10% for domestic use.

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3) C. lawns and toilets

5) C. aquifer

11) C. burying in landfills

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