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

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Q.
Given below are two statements: [2025]

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

Ans.
(3)

Primary source of energy in the ecosystem is solar energy.

Gross primary productivity of an ecosystem is the rate of production of organic matter during photosynthesis. Hence, statement I is correct but statement II is incorrect.

Solution

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

Ans.
(3)

Primary source of energy in the ecosystem is solar energy.

Gross primary productivity of an ecosystem is the rate of production of organic matter during photosynthesis. Hence, statement I is correct but statement II is incorrect.

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Solution

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

Ans. (3) Primary source of energy in the ecosystem is solar energy. Gross primary productivity of an ecosystem is the rate of production of organic matter during photosynthesis. Hence, statement I is correct but statement II is incorrect.

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Ans.
(3)

Primary source of energy in the ecosystem is solar energy.

Gross primary productivity of an ecosystem is the rate of production of organic matter during photosynthesis. Hence, statement I is correct but statement II is incorrect.