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Question

Consider the following ecosystems
1. Taiga
2. Tropical evergreen
3. Tropical decidous
4. Tundra
The correct sequence in decreasing order of the albedo values of these ecosystems is
  1. 1, 4, 2, 3
  2. 1, 4, 3, 2
  3. 4, 1, 2, 3
  4. 4, 1, 3, 2


Solution

The correct option is C 4, 1, 2, 3

Ans. (b)

Explanation

The earth's average albedo is 34%. But it varies according to the texture and colour of the surface. For fresh snow, the albedo is 85%, for forests, it is 5-10%. Accordingly, the order is Tundra - Taiga - Tropical evergreen - Tropical deciduous.

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