Consider the following:
1. Moon
2. Earth
3. Venus
Which among the following is the increasing order of albedo of the above three bodies?

Answer: [A] 1 2 3

Planetary albedo is the fraction of the incoming light reflected from a surface. A bright surface, such as ice or snow, has a very high albedo  (close to 1, which would represent total reflection), whereas a dark surface, such as coal or soot, has a very low albedo (close to 0, which would represent complete absorption). In the solar system, the Moon, which has a bare, rocky surface, has an average albedo of 0.12 (reflects 12 per cent of the light hitting it). The Earth, which is partly cloud-covered, has an average albedo of 0.37, while the albedo of Venus, which is completely cloud-covered, is 0.65.

This question is a part of GKToday's Integrated IAS General Studies Module