Question

explain why ,big boulders can be moved easily by flood ? in brief​

Answer 1

Due to water logged near and below the boulder, the friction reduces. Moreover ,due to upthrust exerted by water,there is apparent loss of weight in the boulder.Hence the boulder can move by floods !

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Answer 2

Answer:

This is because the force with which the water flows in a typical flood is very large. It is more than enough to move large boulder and anything else in their path due to large buoyant force acting on it.

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