Assertion :Many great rivers flow towards the equator. The sediments that they carry increase the time of rotation of the earth about its own axis. Reason: The angular momentum of the earth about its rotation axis is conserved.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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Assertion is correct but Reason is incorrect

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Assertion is incorrect but Reason is correct

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Solution

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
Rivers carry sediments away from the axis of rotation of the earth. This increases angular momentum of earth. Hence, speed of earth decreases. Therefore time of rotation increases about its own axis. Speed of earth decreases to conserve angular momentum about its axis of rotation.
Hence, both assertion and reason are correct and reason is correct explanation of assertion.

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