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Question

Approximately how much of the solar energy that falls on the leaves of a plant is converted to chemical energy by photosynthesis?


A

Less than 1%

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B

2-10%

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C

30%

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D

50%

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Solution

The correct option is B

2-10%


Of the total incident solar radiations, PAR or photosynthetically active radiation (that the plants utilize for photosynthesis) accounts for only 50 percent. And Out of the 50% that corresponds to PAR, green plants capture only about 2% of the total PAR that falls on their leaves for the process of photosynthesis, converting it into food energy.

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