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Plants capture only what share of PAR?

A40 to 50 per cent
B80 to 90 per cent
C2 to 10 per cent
D20 to 30 per cent
Answer & Solution
Correct answer: C. 2 to 10 per cent
1. This small fraction sustains all life. 2. Plants fix 2 to 10 per cent of PAR. 3. Energy flow is unidirectional. _Source: syllabus Biology, Chapter 14, Ecosystem._
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