Apes ch 11

question

Famine is a condition in which _____________is so extreme that large numbers of deaths occur in a given area over a relatively ___________ period of time.
answer

food insecurity; short
question

To achieve food security a nation must have I. economic security. II. political security. III. physical access to food.
answer

All 3
question

What is the general relationship between meat consumption and affluence?
answer

More affluent nations tend to consume more meat products.
question

A steady diet of high calorie, low nutrition fast food may lead to I. overnutrition. II. malnutrition. III. undernutrition.
answer

I and II
question

Currently the world’s farmers grow enough grain to feed
answer

More than the worlds population
question

Use Figure 11-1. If you eat 2000 calories of a typical 2010 U.S. diet in a day, how many calories of energy were needed to produce the food?
answer

20,000
question

Typically, most of the energy subsidies in modern agriculture are in the form of
answer

Fossil fuels
question

Which of the following is NOT a benefit associated with industrial agriculture?
answer

d. There is a low ratio of energy input to calorie output.
question

Which is directly associated with irrigation? I. Fishery collapse II. Waterlogging III. Salinization
answer

II and III
question

Which is NOT a disadvantage of monocropping?
answer

Nutrition and pesticide needs do not change
question

After many years of applying a selective pesticide, a farmer notices that the applications seem less effective. What is the most likely explanation for this change?
answer

. The target species has begun to evolve resistance.
question

The pesticide treadmill is I. a positive feedback loop. II. a cycle of pesticide development following pesticide resistance. III. an improvement in pesticide efficiency.
answer

II only
question

Many scientists argue that worldwide fisheries are declining, yet the worldwide number of fish harvested continues to increase. What best explains this discrepancy
answer

Improvements in technology are increasing the catch despite declining populations.
question

Use Figure 11-2. In the figure, the global fish production line includes both wild-caught fish and aquaculture-raised fish. About how many metric tons of fish were wild-caught in 1990?
answer

65 million metric tons
question

Which areas of the world are most susceptible to desertification?
answer

Areas adjacent to existing deserts
question

Which is the best sustainable agriculture technique for soil types with low productivity?
answer

Nomadic grazing
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Under what conditions do nomadic grazing and shifting agriculture work?
answer

Small human populations where subsistence farming is used
question

Which is NOT a technique of integrated pest management (IPM)?
answer

Increased use of traditional pesticides
question

Why is integrated pest management (IPM) especially successful in developing countries?
answer

High-input industrial farming is not feasible because farmers lack financial resources.
question

Which is an advantage of aquaculture? I. Aquaculture uses no antibiotics or synthetic chemicals. II. Aquaculture can alleviate human caused pressure on native fisheries. III. Aquaculture helps protect the health and biodiversity of local ecosystems.
answer

II only

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