Q. Consider the following ecosystems:

1. Taiga
2. Tropical evergreen
3. Tropical deciduous
4. Tundra

Which of the following sequences correctly represents the decreasing order of albedo values of these ecosystems?
Answer: 4, 1, 3, 2
Notes: The correct decreasing order of albedo values is: Tundra (highest), Taiga, Tropical deciduous, and Tropical evergreen (lowest). Tundra’s snow cover gives it high albedo; Taiga follows due to coniferous vegetation; Tropical deciduous forests shed leaves, increasing albedo; Tropical evergreen forests have dense, dark foliage, resulting in the lowest albedo among these ecosystems.