Unit 5, Part 2

Why are cows fed corn in CAFOs?

• It is cheap and accelerates growth

• It prevents bacterial growth

• It is easily dried and stored

• Cows digest corn easily

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Cows in CAFOs require more antibiotics because

• they eat corn and stand in their own wastes

• they are densely packed

• the breed of cattle used in CAFOs tend to be weaker

• they are older than grass fed beef

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CAFOs make meat more economical, but may have some negative environmental impacts. These include all of the following EXCEPT

• increase in nutrients in stormwater runoff.

• increase in sediments in stormwater runoff.

• increased use of land area over other types of animal farming.

• high concentrations of animal waste.

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Overgrazing of grasslands can lead to reduced range quality. Two of the major effects of overgrazing are

• erosion and desertification

• eutrophication and increased methane production

• higher fire potential and increased productivity

• higher primary productivity and ammonification

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Compared with people in developing countries, people in industrialized countries are more likely to eat…

• Beef

• Corn

• Rice

• Beans

How are birds raised and slaughtered in 2008 different then 1950?

• The chickens are made smaller and slaughtered sooner.

• The chickens are made bigger and slaughtered later.

• The chickens are made smaller and slaughtered later.

• The chickens are made bigger and slaughtered sooner.

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__________________________ of a fishery is the highest amount of species that can be harvested without diminishing the populating in future years.

• Maximum Sustainable Yield

• Exclusive Economic zone

• Overexploited

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What is aquaculture?

• The study of saltwater and freshwater organisms for use in medicine

• The breeding of land plants and animals to be used as fish feed

• The breeding, raising and harvesting of both fresh and saltwater organisms

• The manufacturing of aquatic organisms into feed and fertilizer

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Which of these is NOT an environmental concern of farming fish?

• Introducing pesticides, herbicides and antibiotics into the environment

• Transferring disease from farmed fish to wild fish and vica versa

• Increasing waste in slow moving water

• Potentially introducing native fish into the wild

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Measure of how much a person/group consumes, expressed in area of land

• Ecological Footprint

• Ecological Factor

• Carbon Footprint

• Waste Footprint

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