The Main Reason Polar Regions Are Cooler Than the Equator

question 53

Multiple Choice

The main reason polar regions are cooler than the equator is that ________.

• A) solar radiation strikes the poles at a lower angle and travels through more atmosphere
• B) the poles are farther from the sun than is the equator
• C) the polar atmosphere is thinner and contains fewer greenhouse gases
• D) the poles are permanently tilted away from the sun

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