A History of Global Climate Change Answers

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At which time of day is the heat flow entering Earth's atmosphere (Hin) highest?

sunrise

midday

sunset

midnight

When the levels of greenhouse gases in Earth's atmosphere increase, which statement is true?

Earth's temperature increases because Hin increases.

Earth's temperature increases because Hout increases.

Earth's temperature increases because Hout decreases.

Earth's temperature increases because Hin increases and Hout decreases.

What is the likely long-term consequence of an increase in the relative percent of greenhouse gases in Earth’s atmosphere?

Earth’s average temperature will increase.

Earth’s average temperature will decrease.

Earth will experience greater temperature extremes.

Earth’s average temperature will be unaffected.

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