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he future worldwide use of irrigation: A) is expected to double in the next 20 years due to increasing demands for food

he future worldwide use of irrigation: A) is expected to double in the next 20 years due to increasing demands for food

Environmental Science: Toward a Sustainable Future

by Wright and Boorse, 12th edition

16 Multiple Choice Questions

 

1) The future worldwide use of irrigation:

A) is expected to double in the next 20 years due to increasing demands for food

B) is limited by the availability of freshwater, waterlogging, and salinization of soils

C) depends on new technologies to extract more groundwater

D) will require increased reliance on new hydrogen technologies to produce freshwater

 

16) The development of new varieties of grain crops increased productivity by increasing the:

A) surface area of the leaves of the plants

B) size of the roots and ability to absorb water

C) strength of the stems to support more grains

D) size and number of seeds

 

2) In the last 50 years, the greatest progress in addressing worldwide hunger and malnutrition came from the:

A) use of better transportation methods to export grain more efficiently

B) development and use of new varieties of high-yielding wheat and rice

C) reduced reliance on pesticides, herbicides, and chemical fertilizers

D) widespread use of sustainable irrigation methods

 

3) Although the Green Revolution has greatly reduced world hunger and malnutrition, it has:

A) doubled the amount of land used to raise crops

B) not significantly increased the productivity of modern agriculture

C) required high levels of increasingly expensive fertilizer and pesticides

D) contributed significantly to the destruction of the ozone layer

 

4) Radiation exposure immediately around a properly functioning nuclear power plant is about

A) less than 1% of natural background exposure.

B) double normal environmental background exposure.

C) 10 times higher than normal environmental background exposure.

D) 100 times higher than normal environmental background exposure.

 

5) Nuclear bombs rely upon:

A) a domino effect that causes the nuclear fission of uranium-235 in less than a second

B) a domino effect that causes the nuclear fusion of uranium-235 in less than a second

C) an instantaneous fission of uranium-235 under extreme pressures

D) an instantaneous fusion of uranium-235 under extreme pressures

 

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