15.1: Feeding the World

Malnutrition generally occurs because of

• poverty

• war and political strife

• transportation problems

• all of the above

The human body depends on food to build and maintain

• vitamins and minerals.

• body tissues.

• proteins.

• essential amino acids.

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Drought, soil loss, and problems with food distribution in a region can cause

• erosion.

• poverty.

• famine.

• yield.

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A plot of land can produce more food when it is used to grow _________than when it supports ___________.

• plants, animals

• fish, poultry

• soybeans, grains

• rice, corn

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People in developed countries eat more ___________than people in less-developed countries.

• carbohydrates

• fat

• protein

• Both (b) and (c)

Negative effects of the green revolution include soil degradation as well as the overuse of water,_____________, and fertilizers.

• carbohydrate plants

• crop varieties

• Both (a) and (b)

• pesticides

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Provides high nutrients per gram

• meat

• production requires less energy, water, and land

• yield

• subsistence farming

Amount of food produced in a given area:

• production requires less energy, water, and land

• yield

• subsistence farming

• meat

This was harmed by the green revolution:

• subsistence farming

• yield

• production requires less energy, water, and land

• meat

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Food from plants

• subsistence farming

• production requires less energy, water, and land

• meat

• yield

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