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  Albedo is the fraction of solar energy reflected from the Earth back into space. Consider the following :
1. Fresh snow
2. Ocean ice
3. Rivers on high mountains.
The correct order of their Albedo is:
  • a)
    1 > 2 > 3
  • b)
    2 > 3 > 1
  • c)
    2 > 1 > 3
  • d)
    1 > 3 > 2
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
Albedo is the fraction of solar energy reflected from the Earth back ...
 Answer: a)
Explanation: High-frequency radiowaves are reflected from the E layer. D layer is the lowest of the ionosphere layers, which absorbs the highest amount of harsh x-ray radiation. During the night, there is a minimal amount of ionization taking place. There is a high amount of energy dissipation because of rapid collisions of the ions. During day time all three- D, E and F layer are present, but D layer does not help in communication. This is because its density is greatly reduced. The D layer is normally not dense enough to reflect the radio waves. However, the E layer is, so the VLF signals go through the D layer, bounce off the E layer, and go back down through the D layer to the ground. The signals lose energy as they penetrate through the D layer and hence radios pick up weaker signals from the transmitter during the day.
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Most Upvoted Answer
Albedo is the fraction of solar energy reflected from the Earth back ...
> 2 > 3
b)2 > 1 > 3
c)3 > 1 > 2
d)1 > 3 > 2

Answer: a) 1 > 2 > 3

Fresh snow has the highest albedo, with up to 90% of solar radiation being reflected back into space. Ocean ice also has a high albedo, with up to 70% being reflected. Rivers on high mountains have a lower albedo compared to snow and ice, with only around 20-40% of solar radiation being reflected.
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Albedo is the fraction of solar energy reflected from the Earth back into space. Consider the following :1. Fresh snow2. Ocean ice3. Rivers on high mountains.The correct order of their Albedo is:a)1 > 2 > 3b)2 > 3 > 1c)2 > 1 > 3d)1 > 3 > 2Correct answer is option 'A'. Can you explain this answer? for UPSC 2025 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about Albedo is the fraction of solar energy reflected from the Earth back into space. Consider the following :1. Fresh snow2. Ocean ice3. Rivers on high mountains.The correct order of their Albedo is:a)1 > 2 > 3b)2 > 3 > 1c)2 > 1 > 3d)1 > 3 > 2Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for UPSC 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Albedo is the fraction of solar energy reflected from the Earth back into space. Consider the following :1. Fresh snow2. Ocean ice3. Rivers on high mountains.The correct order of their Albedo is:a)1 > 2 > 3b)2 > 3 > 1c)2 > 1 > 3d)1 > 3 > 2Correct answer is option 'A'. Can you explain this answer?.
Solutions for Albedo is the fraction of solar energy reflected from the Earth back into space. Consider the following :1. Fresh snow2. Ocean ice3. Rivers on high mountains.The correct order of their Albedo is:a)1 > 2 > 3b)2 > 3 > 1c)2 > 1 > 3d)1 > 3 > 2Correct answer is option 'A'. Can you explain this answer? in English & in Hindi are available as part of our courses for UPSC. Download more important topics, notes, lectures and mock test series for UPSC Exam by signing up for free.
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