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
Only 1
Neither 1 & 2
Both 1 & 2

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World Geography
The main objective of multi-purpose river projects are

All of these
flood controls and making rivers navigable
power generation by constructing hydro power stations
extension of irrigation facilities by constructing dams to store surplus water during the rainy seas

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World Geography
The process of weathering results into

All of these
a breakdown of one mass in to two or more masses, with no chemical change in the mineral or rock
the addition of specific atoms or compounds to the weathered surface
the complete loss of particular atoms or the compounds from the weathered surface

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