The height of troposphere varies from 8 kilometers at poles to 18 kilometers at equator Which of the...........

Geography and Environment(BPSC) World climates

The height of troposphere varies from 8 kilometers at poles to 18 kilometers at equator.

Which of the following is/are valid reason(s) behind this variation?

1. Centrifugal force generated by the rotation of the Earth.

2. Convectional currents at the equator cause air to rise up.

3. More rainfall at the equator compared to the poles.

1 and 2 only

2 and 3 only

1 only

1, 2 and 3

3rd statement is incorrect. The more rainfall at the equator as compared to poles has no relation with the variation in height of troposphere.

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