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What fraction of PAR do plants capture to sustain the entire living world?
A2 to 10 percent
B20 to 30 percent
C40 to 50 percent
D60 to 70 percent
Answer & Solution
Correct answer: A. 2 to 10 percent
Plants capture only about 2 to 10 percent of PAR, and this small amount supports all life.
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