Assertion (A): Gross primary productivity (GPP) is always greater than net primary productivity (NPP). Reason (R): Some amount of organic matter produced during photosynthesis is utilized by producers for their own respiration.
- ABoth A and R are true and R is the correct explanation of A
- BBoth A and R are true but R is NOT the correct explanation of A
- CA is true but R is false
- DA is false but R is true
✓ Correct answer: A
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