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Question
A mine has closed. What should be done to reclaim the site? What are some problems with such reclamation? Does the replanted vegetation resemble the one destroyed by mining? Why?Answer
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Differentiate between renewable and nonrenewable natural resources. Give examples of each.
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Many permafrost soils in the Arctic are peat soils.
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Shelterbelts are to ________ as terraces are to ________.
A) wind erosion; water erosion
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D) stratification; salinization
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E) There is no Canadian agency charged with soil degradation, only volunteer firms funded by farmers.
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Farmer John bought a field in which soils have lots of sand particles. This suggest that this soil will have ________.
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How does climate explain the poor soils in the Amazon rainforests?
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Explain the no-till method and discuss its pros and cons.
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Aside from contraception, what can humans do to control population growth's negative effects on the environment?
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B) encourage emigration from Africa
C) discourage emigration from Africa
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Urbanization drives TFR down.
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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 ________.
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B) decreasing and sustainable
C) steady state and sustainable
D) from unsustainable to sustainable
E) rapidly increasing, moving from unsustainable to sustainable