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What amount of carbon is fixed in the biosphere through photosynthesis annually?

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in Biology – Class 12 by (271k points)
What amount of carbon is fixed in the biosphere through photosynthesis annually?

(a) 10^13 kg

(b) 20 × 10^20 kg

(c) 4 × 10^13 kg

(d) 80 × 10^35 kg

I had been asked this question by my college director while I was bunking the class.

The origin of the question is Ecosystem in division Ecosystem of Biology – Class 12

1 Answer

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Right choice is (c) 4 × 10^13 kg

Explanation: Photosynthesis is a process in which producers (green plants) in the presence of CO2, water, sunlight, and chlorophyll yield energy and oxygen is released in the form of gas. The amount of carbon fixed in the biosphere through photosynthesis annually is approximately 4 × 10^13 kg.

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