Assertion :Abiotic components of an ecosystem involve the cycling of material and the flow of energy. Reason: Abiotic components are essential to keep biotic factors alive.

Both assertion and reason are correct and the reason is the correct explanation for assertion.

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Both assertion and reason are correct but the reason is not the correct explanation for assertion.

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Assertion is correct but the reason is incorrect.

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Assertion is incorrect but the reason is correct.

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Solution

The correct option is A Both assertion and reason are correct and the reason is the correct explanation for assertion.
The assertion is correct because plants can synthesize food due to the presence of abiotic components like carbon dioxide and sunlight, due to which energy is produced. This energy is transferred at each trophic level.
The reason is correct because due to energy obtained, organisms at each trophic level sustain.

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