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UPSC 2002: Consider the following ecosystems: 1. Taiga 2. Tropical evergreen 3. Tropical deciduous 4. Tundra The correct sequence in decreasing order of the albedo values of these ecosystems is
(a)1, 4, 3, 2
(b)4, 1, 2, 3
(c)4, 1, 3, 2
(d)1, 4, 2, 3
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Not attemptedCorrect Answer: (c) 4, 1, 3, 2
Albedo decreases from highly reflective snow-covered or barren surfaces to dark dense forests. Tundra (snow/ice cover) has the highest albedo, followed by Taiga (coniferous forest with seasonal snow), Tropical Deciduous forest (lighter canopy during dry season) and finally the very dark Tropical Evergreen forest. Hence the decreasing order is 4 > 1 > 3 > 2, i.e., option (c). ([scribd.com](https://www.scribd.com/document/819879928/2002-QP-AW))
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Frequently Asked Questions
What is the correct answer to this UPSC 2002 Environment & Ecology question?▼
The correct answer is option (c): 4, 1, 3, 2. Watch the detailed video explanation in our Sherlocking Prelims course on UnlockIAS.
Which year was this Biogeochemical Cycles & Earth Systems question asked in UPSC Prelims?▼
This question was asked in UPSC CSE Prelims 2002, GS Paper 1, as Question 136. It falls under Environment & Ecology > Biogeochemical Cycles & Earth Systems.
What is the difficulty level of this UPSC question?▼
This question is rated "moderate". It requires sound conceptual understanding of the topic.
How many UPSC Prelims questions have been asked from Biogeochemical Cycles & Earth Systems?▼
UPSC has asked 8 questions from Biogeochemical Cycles & Earth Systems (under Environment & Ecology) across multiple years. Visit the topic page to see the full list and year-wise trends.