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Most humans rely on just a few of the world's animal and plant species for food because only a few


A) Are edible.
B) Are available.
C) Have been discovered.
D) Food types are what we are accustomed to eating.
E) All of these are true.

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The Harvard food pyramid recommends 6-11 servings of bread, rice, cereal, and pasta.

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Vitamin A deficiencies are associated with


A) Anemia
B) Weak bones
C) A lack of energy, or listlessness
D) Poorly developed neural systems in embryos
E) Blindness

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Food aid policies of rich nations can exacerbate famine and hunger problems in poor nations because


A) it robs the government of the poor country of valuable tax revenue.
B) the local farmers of the poor nation are forced out of business by the free or cheap food and the economy cannot stabilize properly.
C) it creates more fighting over food.
D) it causes no problems.

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People who subsist on starchy foods, such as cassava, potatoes, and white rice


A) Often receive insufficient protein.
B) Are usually severely overweight.
C) Have the healthiest possible diet.
D) Are sure to meet all their nutritional needs.
E) Are usually suffering from goiter.

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A

Famines are most often serious when there is


A) A very serious drought.
B) No room to expand agriculture.
C) Steady population growth.
D) Armed conflict and political oppression.
E) An attempt by indigenous people to return to old traditions and lands.

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Buying shade grown coffee and cocoa has a minimal effect on local ecosystems where they are grown.

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Food security has to do with


A) A country's dependence on cash crop exports.
B) Preventing wars over diminishing food supplies.
C) The ability of a population to obtain food on a day-to-day basis.
D) The total volume of food a country imports.
E) The total volume of aid a country receives.

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Which of the following does NOT describe the status of the world's wild fisheries?


A) Overharvesting threatens the fisheries.
B) Subsidies are necessary to make the fisheries profitable.
C) Fish farming has allowed some wild fish to recover worldwide.
D) Habitat destruction threatens the fisheries.
E) All of these describe the status of wild fisheries.

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C

Most of the livestock grown in North America are


A) Confined in CAFOs.
B) Held in pasture year-round.
C) Kept in pastures during the day and barns at night.
D) Kept in pastures during the summer and barns during the winter.
E) Exported to Europe after slaughter.

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____ percent of adult Americans are overweight.


A) 23
B) 40
C) 80
D) 64
E) 90

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One of the ecological benefits associated with aquaculture is the organic material generated from the aquaculture tanks.The nutrients increase the health and productivity of the surrounding natural ecosystem.

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If fishing demands continue at the current rate, by which year will the world's major fisheries collapse?


A) 2075
B) 2125
C) 2050
D) 2100

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Fifty years ago, there were several hundred varieties of wheat grown in the Middle East.Now a few of the more modern high responder varieties have replaced the indigenous species.What are the implications of this change?


A) The productivity of wheat should continue to rise and increase the availability of food per person.
B) Genetic resources are diminished and an epidemic of wheat disease is more likely due to the reliance on few species.
C) The high responder varieties will need specialized harvesting methods because they are so productive.
D) The biodiversity of wheat species has increased because of the introduction of few hybrid species.
E) All of these are correct.

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High responder crops of the green revolution produce tremendous yields


A) Even in severe drought conditions.
B) With primitive farming techniques and no chemical use.
C) In response to fertilizers, pesticides and irrigation.
D) In all conditions where standard crops fail.
E) Even in severe drought conditions and with primitive farming techniques and no chemical use.

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Agricultural cropland is shrinking worldwide.

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True

Which of the following can drive up food costs?


A) Futures markets
B) Non-food end use of commodity crops, such as ethanol production from maize
C) Exporting food for higher profits
D) Floods, droughts, and storms
E) All of these can cause increases in the price of food.

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Globally, how much of the produced cereals (grains) are fed to livestock?


A) 1/3
B) 1/2
C) 1/10
D) 1/4

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Undernourished parents often raise children who are undernourished because the parents


A) Transfer genetic deficiencies to their children.
B) Do not know any better.
C) Cannot afford to feed their children properly.
D) Do not have access to the information about nutrition.
E) All of these are reasons for the vicious cycle.

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Agricultural (farm) subsidies are especially effective in helping preserve small "family farms."

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