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

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

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World Geography
Which among the following statements is/are correct about Petroleum?Petroleum is an inflammable mixture of oily hydrocarbons.Most of the oil comes from synclines rather than anticlines.Select the correct code from the options given below:

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

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