Chapter 14: Feeding the World

The kilocalories in a food indicates the amount of

• protein

• carbohydrates

• healthfulness

• energy

Energy in foods is provided by

• vitamins

• minerals

• macronutrients

• micronutrients

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Nitrogen is a component of all

• proteins

• carbohydrates

• fats

• vitamins

The nutrient that provides the greatest amount of energy per gram is

• fat

• vitamins

• protein

• carbohydrate

The Green Revolution occurred during the

• Middle Ages

• nineteenth century

• the 1960s

• the 1980s

A cash crop is a crop intended for

• animal feed

• sale

• protecting the soil between growing seasons

• local use

In some developing nations, the percent of animal protein that comes from fish can be as high as

• 10 percent

• 20 percent

• 40 percent

• 80 percent

Quinoa is a

• type of wheat

• historical food of the Incas

• plant native to Asia

• Type of cover crop

The effects of tilling include

• reduced soil drainage

• improved crop production

• reduced need for energy input

• increased soil erosion

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An IPM system is used to

• control pests

• aerate soil

• improve soil nutrients

• reduce erosion

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