Chapter 15: Food & Agriculture Review – Flashcards
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1. Identify the major causes of malnutrition.
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not enough variety of food or not enough food
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2. Compare the environmental costs of producing different types of food.
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Plants require less land, energy and water to produce the same number of calories as meat
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3. Explain how malnutrition today is linked to poverty.
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There is a sufficient amount of food if you have the money to buy it World's hungry are subsistence farmers
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4. Describe the importance & effects of the green revolution.
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Caused worldwide crop yield increases required the use of large amounts of fertilizers, pesticides, and irrigation causing soil degradation
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+Section 2+ 1. Explain the differences between traditional & modern farming methods.
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Traditional farming involved a plow, livestock for a machine, and producing only enough for your local community......Modern farming involves artificial fertilization, genetic modification of food, and modern irrigation
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2. Describe the structure & composition of fertile soil.
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Composed of living organisms, rock particles, water, air, and organic matter. There are several layers of soil under the topsoil.
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3. Explain why the presence of plants helps prevent soil erosion.
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Because without top soil, crops cannot be grown
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4. Explain why soil conversation is an important agricultural practice.
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Because soil is helpful to healthy plant growth
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5. Define the term pest.
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Any organism that occurs where it is not wanted or that occurs in large enough numbers to cause economic damage
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6. Compare the benefits & environmental impacts of pesticide use.
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Pesticide is a poison used to destroy pests, they can always harm beneficial plants
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7. Describe how biological pest control is part of the integrated pest management.
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The use of certain organisms by humans to eliminate or control pests
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8. Describe how genetic engineering is used in agriculture.
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The genome of a living cell is modified for medical or industrial use
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+Section 3+ 1. Explain why the percentage of seafood produced by aquaculture is increasing so rapidly.
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Because they provide of 20% of the animal protein consumed world wide
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2. Explain how over harvesting affects the supply of fish such as salmon.
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Over harvesting could cause a species, such as salmon, to become endangered in that area, and is very important problem for aquatic animals.
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3. Describe the importance of livestock to cultures that consume no meat.
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Because they are used as draft animals to pull carts and plows
