Term
| Why are undernourished children from undernourished parents common? |
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Definition
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Because undernourished parents cannot afford to feed their children properly.
CHAPTER 7, p. 153
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Term
| What two eye conditions are vitamin A deficiency linked to? |
|
Definition
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Dry eyes and retinal degeneration.
CHAPTER 7, p. 154
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Term
| What two diseases are linked to protein deficiencies? |
|
Definition
|
Marasmus and kwashiorkor.
CHAPTER 7, p. 154
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Term
| In what regions does wind erosion primarily cause problems? |
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Definition
|
In open, arid regions.
CHAPTER 7, p. 162
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Term
| Soil salinization and acidification are examples of… |
|
Definition
|
chemical deterioration of soil.
CHAPTER 7, p. 163
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Term
| What causes waterlogging? |
|
Definition
|
Excessive irrigation.
CHAPTER 7, p. 163; Glossary, p. 388
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Term
| How much LESS energy is needed to directly farm crops in the United States, versus the amount used to actually process and distribute it? |
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Definition
|
1/5
(In other words, it takes five times as much energy to process and distribute food as the amount used to directly in farming.)
CHAPTER 7, p. 164
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Term
| What has caused recent increases in agricultural productivity in developing nations? |
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Definition
|
New crop varieties and intensified farming.
CHAPTER 7, p. 165
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Term
| What causes the high yields in high responder green revolution miracle crops? |
|
Definition
|
Fertilizers, pesticides, and irrigation.
CHAPTER 7, p. 166
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Term
| What is likely to happen as wheat farmers rely on fewer new species? |
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Definition
|
1. An epidemic of wheat disease
2. Old wheat varieties are lost
3. Genetic resources are diminished
CHAPTER 7, pp. 166-167
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Term
| What farming techniques prevent water and soil loss? |
|
Definition
|
Contour plowing and strip farming.
CHAPTER 7, p. 169; Glossary p. 380
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Term
| What is the most sustainable land use in tropical forests? |
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Definition
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Periodic mixed (swidden or slash-and-burn) agriculture.
CHAPTER 7, p. 170
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Term
| What type of farming is cheaper and safer than conventional farming? |
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Definition
|
Sustainable farming.
CHAPTER 7, pp. 168 & 171-172
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