Question

what is troposphere contains?

Answer 1

Troposphere is one of the layer of the Earth. It contains most of the water vapor. It contains around 75% of the total mass of the atmosphere and contains 99% of water vapor.

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Answer 2

The troposphere contains almost all the atmospheric water vapour, in fact it contains about 70 to 80 per cent of the total mass of the Earth's atmosphere and 99 per cent of the water vapor.