Which of the following activities would be most likely to increase the amount of soil organic matter?
Question 15 options:
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Plowing a field every year.
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Growing plants that have large root systems.
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Increasing the rates of decomposition by microorganisms.
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In the future, precipitation ____________.
Question 16 options:
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a)
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is projected to become more extreme, so dry places will get drier and wet places will get wetter
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b)
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is expected to decrease most places.
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c)
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changes are better understood than temperature changes.
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d)
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will probably not change most places.
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Earth system models (ESMs) ___________.
Question 17 options:
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a)
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allow us to test hypotheses of what is causing current climate change.
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b)
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show that human emissions of greenhouse gases are the primary forcing of climate change.
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c)
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show that changes in the sun's intensity and volcanoes cannot account for current climate warming.
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d)
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are better at predicting future changes in temperature than precipitation.
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