Land Title: Environmental Science: Systems and Solutions, Fourth Edition Authors: Michael I. McKinney, Robert M. Schoch, Logan Yonavjak
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Practice Quizzes

Please read each question and select your answer from the choices provided. You must complete all of the questions in order to view your results.

1:  Which of the following statements about world hunger is most likely true?
A: World hunger problems would be solved if the political and social causes could be remedied.
B: World hunger problems exist because of a global food shortage.
C: World hunger persists because of inadequate distribution mechanisms.
D: World hunger problems are expected to decline as population continues to decline.

2:  Grain production per capita reached a global high in
A: 1960
B: 1985
C: 1990
D: 1992

3:  Which of the following is true about agricultural food supplies?
A: About ten percent of the world's grains is used to feed livestock.
B: Grain production worldwide is highly dependent on weather conditions.
C: Soybean production can greatly increase per acre with more intensive agricultural methods.
D: In recent years (since 1990) carryover grain stocks have depleted to zero.

4:  Which of the following statements is true?
A: Each year more land is put under cultivation than is removed from cultivation.
B: The amount of grain harvested per person has remained roughly steady the past ten years.
C: The increase in the amount of grain per acre since 1950 is due to the Green Revolution.
D: Since 1950 the amount of land newly irrigated is one-tenth the population increase in that span.

5:  Which of the following about the pioneer stage of agriculture is true?
A: The pioneer stage of ecological succession is less productive than the climax community.
B: Pioneer communities are inherently unstable.
C: Pioneer communities tend to replenish soil fertility.
D: Pioneer communities are resistant to drought, disease, and periodic flooding.

6:  Which of the following is true about traditional and/or modern method of agricultural practice?
A: Crop rotation using leguminous plants tends to restore phosphorous to the soil.
B: The use of herbicides and pesticides tends to stabilize the crop year after year.
C: Fertilizers tend to restore trace minerals to the soil.
D: Planting a variety of crops in a field tends to increase the stability of the field.

7:  Which of the following is true?
A: IPM, biological control of pests, and organic farming are environmentally sound but so far, economically infeasible.
B: The first genetically engineered whole food product to hit the market was the Flavor Save potato in 1994.
C: Bioengineering advantages are limited and restricted to only a few varieties of plants.
D: Bioengineered crops may not only provide a superior food but some can even be used to make plastics.

8:  Which of the following is true about fishing?
A: The open ocean contains little life.
B: More species of animals live in the ocean than on land.
C: Overexploitation of the oceans could be solved with the use of driftnets.
D: Global fish catch continues to increase each year in spite of overexploitation.

9:  Which of the following is true about soils?
A: Soils are lost faster through erosion than they are made.
B: Good agricultural soil contains decomposed rock, minerals but no or few microorganisms.
C: Most extreme soil degradation has occurred in North America.
D: Deforestation is the number one cause of soil degradation worldwide.

10:  If 3.8 billion acres of land are currently under cultivation and if the population increases from 6.6 billion to 8 billion, how much more land would need to be cultivated, assuming everything remains unchanged?
A: 5.9 million
B: 9 million acres
C: 0.8 billion more acres
D: 3 billion more acres

11:  From Figure 13-9, estimate the number of metric tons of grain produced per hectare worldwide in 1980.
A: About 1 ton
B: About 1.5 tons
C: About 2 tons
D: About 2.6 tons

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Link: Jones and Bartlett Publishers