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Question
How have artificially produced chemicals played a role in giving us the standard of living we enjoy today?Answer
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________ can be quantified as the number of individuals of a given species that can be sustained by the biological productivity in a given area.
A) Carrying capacity
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According to Edward O. Wilson, the most serious and threatening environmental problem is the ________.
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B) Ruben needs to take measurements of the puppy's weight and height at least once a week for it to be a good experiment.
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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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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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Explain the no-till method and discuss its pros and cons.
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C) discourage emigration from Africa
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Why did China institute a population control policy? How is it enforced? Why is it controversial?
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Urbanization drives TFR down.
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D) instituting fertilizer use for agriculture
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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