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10. If water is the transport medium of sediment, the grain size of sedimentary depositsmost closely indicates the ____________.

(A) geographic extent of the weathering source rock at outcrop
(B) average velocity of the water from the time of erosion until deposition
(C) velocity of the water at the moment the sediment settled to the bott

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dedonprince

Answer: If water is the transport medium of sediment, the grain size sedimentary deposits most closely indicates:

(B) average velocity of the water from the time of erosion until deposition.

Explanation: Here, the average velocity of the water determines the sorting of the grain size.

If the average velocity is high like that of the beach, the grain size will be well sorted.

But if the average velocity is low like that of a stream, it would be poorly sorted.

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