A: Estuary constitutes one of the most produc | vedclass

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(C) An estuary is a semi-enclosed coastal body of water where freshwater from rivers or streams meets and mixes with saltwater from the ocean.It is co

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Assertion is correct,but Reason is incorrect.

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(C) An estuary is a semi-enclosed coastal body of water where freshwater from rivers or streams meets and mixes with saltwater from the ocean.It is considered one of the most productive ecosystems on Earth due to the high nutrient availability and the mixing of water bodies.The Reason statement is incorrect because an estuary is a transition zone between two different ecosystems (freshwater and marine),not merely a transition zone between two populations of a single species.Therefore,the Assertion is correct,but the Reason is incorrect.

$A$: Estuary constitutes one of the most productive ecosystems.
$R$: It represents a transition zone between two populations of a species.

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$A$: Estuary constitutes one of the most productive ecosystems.$R$: It represents a transition zone between two populations of a species.