alleryWhat proportion of photosynthetically active radiation do plants capture?
ASixty to ninety per cent
BTwo to ten per cent
CTen to forty per cent
DForty to sixty per cent
Answer & Solution
Correct answer: B. Two to ten per cent
1. Only a small slice of incoming radiation is actually fixed.
2. That slice supports every living thing above the producers.
3. Plants capture only 2 to 10 per cent of the photosynthetically active radiation.
4. This small amount sustains the entire living world.
_Source: syllabus Biology, Ch 12 'Ecosystem'_
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