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Assertion (A) : Three-fourth of the earth’s surface is covered with sedimentary rocks. Reason (R) : They make up only about 5 per cent of the volume of earth’s crust.

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Assertion (A) : Three-fourth of the earth’s surface is covered with sedimentary rocks. Reason (R) : They make up only about 5 per cent of the volume of earth’s crust.






 
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