MP 6 quiz 2

Why should wastes from feedlots be removed at regular intervals?

• To reduce the risk of contamination

• To increase the nutrient content of the soil

• To attract more wildlife

• To improve the taste of the meat

How can animal wastes from farm feedlots contaminate ground water?

• Through direct runoff into water bodies

• By seeping into the soil and reaching underground aquifers

• By evaporating into the atmosphere and then raining down as contaminated precipitation

• Through absorption by plants and then entering the water cycle

Why should feedlots be properly sited?

• To prevent contamination

• To increase production

• To reduce costs

• To attract more customers

Who are some of the entities that use these chemicals?

• Farmers

• Doctors

• Teachers

• Chefs

What are millions of tons of fertilizers and pesticides used for annually in the United States?

• A. Building construction

• B. Crop production

• C. Energy generation

• D. Water treatment

How has ground water been contaminated following normal use of pesticides and fertilizers?

• Due to overuse of pesticides and fertilizers

• Due to illegal dumping of pesticides and fertilizers

• Due to accidental spills of pesticides and fertilizers

• Due to normal use of pesticides and fertilizers

How long can some pesticides remain in soil and water?

• A. Days to weeks

• B. Months to years

• C. Hours to days

• D. Years to decades