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Topic: Productivity and decomposition· Ecology and Environment

Given below are two statements :Statement I : The primary source of energy in an ecosystem is solar energy.Statement II : The rate of production of organic matter during photosynthesis in an ecosystem is called net primary productivity (NPP).In the l…

Given below are two statements :

Statement I : The primary source of energy in an ecosystem is solar energy.

Statement II : The rate of production of organic matter during photosynthesis in an ecosystem is called net primary productivity (NPP).

In the light of the above statements, choose the most appropriate answer from the options given below :

1. Both statement I and statement II are correct

2. Both statement I and statement II are incorrect

3. Statement I is correct but statement II is incorrect

4. Statement I is incorrect but statement II is correct

1 answer

Best answer

Answer: 3. Statement I is correct but statement II is incorrect

Key idea: Statement II defines the wrong term.

Statement I is correct: solar energy is the primary energy source of ecosystems.

Statement II is incorrect: the rate of production of organic matter during photosynthesis is gross primary productivity (GPP). NPP is GPP minus respiratory losses.

Doubtly AI · 30 Oct 2026 AI-generated · not yet verified Report
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