|Consider the following statements,|
|1. Aerosols change cloud properties, alter precipitation patterns,|
|2. Aerosols have a direct radiative forcing because they scatter and absorb solar and infrared radiation in atmosphere.|
|3. Long-term accumulation of black carbon aerosols in the Arctic and Himalaya is leading to increased melting of snow.|
|Which of the statements (s) given above is/ are correct?|
A) 2 and 3
B) 1 and 3
C) Only 2
D) All of these
Correct Answer: D
Solution :[d] The bulk of aerosols about 90% by mass have natural origins. Desert dust, volatile organic compounds from vegetation, smoke from forest fires and volcanic ash are natural sources of aerosols. All of the statements given are correct.
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