World Geography
Which among the following statements is/are correct about impact crater?They are formed by the hypervelocity impact of a smaller bodyThe have similar composition like sinkholes, glacial cirques,etcSelect the correct code from the options given below:

Only 2
Both 1 & 2
Only 1
Neither 1 & 2

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World Geography
Which among the following statements is not correct about Plunge pool?

They are often very deep, generally related to the height of fall and the volume of water,
It is a deep depression in a stream bed at the base of a waterfall
It is created by the erosional forces of cascading water
They occur at the mature stage of the river development

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