Multiple choice

What percentage of insolation is received by the earth's surface?

  1. 47%

  2. 51%

  3. 66%

  4. 87%
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Of the solar radiation reaching Earth's atmosphere, about 51% reaches the surface. The atmosphere absorbs approximately 19% and clouds reflect about 30% back to space. This percentage is crucial for understanding Earth's energy balance and climate system.

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