Exam 11: Climate Change Processes and History

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The Intergovernmental Panel on Climate Change (IPCC) in 2014 estimated that Earth's average surface temperature would likely rise by how much above preindustrial levels by 2050?

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________________ added to the atmosphere since 1750 is the largest contributor to change in radiative forcing.

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Earth has experienced _______________ ice ages over the past two million years.

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Major eruptions of volcanoes emit large amounts of CO2 and CH4, but their total contribution to atmospheric levels is small.

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The amount of water vapor in the clouds contributes to changing albedo.

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The effect of aerosols can be best described as ____.

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Decreasing SO2 pollution, which contributes to acid rain and respiratory diseases, will decrease the rate of global warming.

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Judge the following sentence: Even though water vapor has the greatest effect as a greenhouse gas, it is not normally discussed as one BECAUSE water vapor is completely natural and we have no control over it.

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Why is it warmer in the northern hemisphere in July than it is in December?

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Judge the following sentence: Temperatures have risen faster in the oceans than on the continents BECAUSE the ocean has a greater heat capacity than land.

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Which of the following is NOT a layer of Earth's atmosphere?

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