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Question
Natural gas is ________.A) trapped over some cities for commercial use
B) produced only by bacteria during decomposition
C) more damaging to the environment than coal
D) still much more expensive than other fossil fuels
E) often associated with coal and petroleum deposits
Answer
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Many permafrost soils in the Arctic are peat soils.
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A) wind erosion; water erosion
B) water erosion; wind erosion
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Discuss the factors that affect the severity of soil loss to wind erosion.
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C) discourage emigration from Africa
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Urbanization drives TFR down.
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A) the book The Population Bomb, which described the disastrous effects of human population growth
B) the idea that, without social strictures, the increase in the human population would lead to famine and war
C) the concept that human population growth would lead to greater industry and prosperity through education
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The most accurate terms describing the trend over the past 50 years in resource use for human energy and agricultural systems are ________.
A) increasing and unsustainable
B) decreasing and sustainable
C) steady state and sustainable
D) from unsustainable to sustainable
E) rapidly increasing, moving from unsustainable to sustainable