Question

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:

विकल्प

• Both statement I and statement II are correct.

• Both statement I and statement II are incorrect.

• Statement I is correct but statement II is incorrect.

• Statement I is incorrect but statement II is correct.

Answer 1

Statement I is correct but statement II is incorrect.

Explanation:

Solar energy is indeed the primary energy source for almost all ecosystems. It drives photosynthesis in autotrophs (like plants), which form the base of the food chain. The rate of organic matter production during photosynthesis in an ecosystem is called gross primary productivity (GPP). GPP represents the total amount of organic matter produced by plants through photosynthesis over a specific time period.