Multiple choice

Albedo is a measure of surface reflectivity. The polar albedo is important because:

  1. It reflects greenhouse gases, cooling our planet

  2. It absorbs solar radiation, which melts snow

  3. It reflects solar radiation back into space, cooling earth

  4. It absorbs greenhouse gases, pulling them out of circulation
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Albedo is the reflectivity of a surface. High albedo in polar regions reflects sunlight back into space, which helps keep the Earth cool.

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