What percentage of solar radiation is reflected back into outer space by the albedo of the Earth?

A) 30%
B) 20%
C) 100%
D) 50%


Answer: A

Environmental & Atmospheric Sciences

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What are the drawbacks of wind power?

a. Cluttering the horizon with towers may spoil a beautiful view b. The constant loud hum of the towers can disturb nearby residents c. The towers may be a hazard to migrating birds d. Offshore towers may interfere with marine life e. All of the above

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Ice tends to form at the

A. layer of water slightly below the surface. B. surface of bodies of water. C. bottom of bodies of water. D. indeterminate

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Compared with the mass of a certain object on Earth, the mass of the same object on the Moon is

A) less. B) more. C) the same.

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If a sediment is white in color, it is likely to be:

A) undergoing oxidation. B) terrigenous in origin. C) biological in origin. D) a nodular sediment.

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