World Geography
The sequence of layers of atmosphere from earth to upwards is

troposphere, tropopause, stratosphere, mesosphere , exosphere, thermosphere, thermopause
troposphere, tropopause, stratosphere, thermosphere, exosphere
troposphere, tropopause, stratosphere, stratopause, mesosphere, mesopause, ionosphere(thermosphere, thermopause, exosphere)
troposphere, stratosphere, stratopause, mesosphere , ionosphere

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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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