NEET Botany Energy Flow Assertion Reason Question
Assertion (A): Energy flow in an ecosystem is unidirectional. | Reason (R): Plants capture only 2-10% of the photosynthetically active radiation.
Both A and R are true, and R is the correct explanation of A.
Both A and R are true, but R is not the correct explanation of A.
A is true but R is false.
A is false.
Correct Answer
Detailed Explanation
Energy flow is unidirectional from the sun to producers and then to consumers. The percentage of PAR captured by plants does not explain why energy flow is unidirectional.
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