Exam 14: Agriculture and Food Resources

A) a loss of 160,000 hectares per year.
B) a loss of 400,000 hectares per year.
C) a gain of 160,000 hectares per year.
D) a gain of 400,000 hectares per year.
E) a consistent acreage of productive agricultural land.

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A) increasing the amount of land under cultivation.
B) genetically engineering more productive crop varieties.
C) lowering the costs of agricultural chemicals.
D) improving soil quality.
E) using more water for irrigation.

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A) fewer insects and weeds developing resistance to pesticides.
B) more insects and weeds developing resistance to pesticides.
C) more beneficial microorganisms in the soil
D) more biodiversity of fish and other aquatic organisms not affected by the pesticides.
E) farmers applying progressively smaller quantities of pesticides.

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A) decline in prime farmland.
B) decline in numbers of domesticated plant varieties.
C) addressing habitat fragmentation.
D) improving crop and livestock yields.
E) increase in number of domesticated animal varieties.

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A) limited amounts of narrow-spectrum pesticides
B) limited amount of broad-spectrum pesticides
C) fungicide spray before shipment to grocery stores
D) organic pesticides rather than inorganic pesticides
E) no pesticides

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A) soil erosion
B) depletion of fossil fuels
C) disposal of livestock wastes
D) habitat fragmentation
E) none, these are all problems associated with industrial agriculture

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A) has a diet high in cereal grains and low in livestock products.
B) probably lives in a rural area of a developing country
C) will have pronounced muscle tone and accelerated skeletal growth.
D) has a protein deficiency even though adequate calories are consumed.
E) has an increased likelihood of obesity, diabetes, and heart disease.

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A) a liquid pesticide that can cover expansive areas of agricultural lands with no negative impact
B) a combination of pesticide and fertilizer that allow plants to grow faster while killing its pests
C) a specific pesticide that kills the intended organism and does not harm any others
D) a wide-reaching pesticide that kills a variety of organisms, including beneficial ones
E) a pesticide that stays exactly where it is sprayed and degrades over time

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Any of the three methods listed below:
A...

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Integrated...

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A) as the total world grain production increases, world hunger decreases
B) the total grain production varies according to weather conditions, so world hunger is intermittent
C) if the increase in world grain production continues to rise at this rate, world hunger will be eradicated by 2020
D) the increase in world grain production does not change the amount of grain produced per person because the population is also increasing, so hunger persists
E) there is no relationship between the size of the human population and world hunger

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Yes, the superintendent should begin a s...

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A) narrow-spectrum pesticide because it focuses on killing specific organisms
B) narrow-spectrum pesticide because it stays exactly where it is sprayed
C) broad-spectrum pesticide because it moves around the environment to reach all potential pests
D) broad-spectrum pesticide because insects cannot develop resistance to it
E) neither broad and narrow-spectrum pesticides have deleterious environmental effects

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A) with repeated application of pesticide, pests develop genetic resistance
B) pesticides reduce the amount of crop lost through competition with weeds
C) pesticides exhibit persistence, degrading slowly
D) pesticides show mobility, moving other than where they were applied
E) pesticides bioaccumulate in the food chain

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A) suffered from poor weather conditions in 1980
B) benefited from the green revolution in 2000
C) remained constant from 1990-2005
D) doubled from 1950 to 1970
E) tripled from 1960 to 2005

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A) its target organism
B) indiscriminate organisms in the vicinity of its spray
C) thin-leaved plants
D) tapered insects such as wasps and ants
E) all organisms in a restricted range

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