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Which of the following best explains why the equator receives more solar radiation than the poles?.
- A.The Earth's tilt causes the sun's rays to be more concentrated at the equator.
- B.The surface at the equator is darker, absorbing more heat.
- C.The atmosphere is thinner at the equator, allowing more radiation to pass through.
- D.The sun's rays strike the equator more directly over a smaller surface area.
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