IAS General Studies Prelims Question No. 121

Aerosols are minute particles suspended in the atmosphere, and are known to reduce primary productivity on earth. How they contribute in reducing primary productivity?
[A] By decreasing oxygen concentration
[B] By preventing nitrogen fixation
[C] By decreasing atmospheric albedo
[D] By increasing atmospheric albedo
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[D] By increasing atmospheric albedo
Fourth option is the correct answer. Increase in atmospheric albedo reduces the rate of photosynthesis by plants on earth.