Question

5. What is the percentage of water vapour in the atmosphere ?
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Answer 1

Answer:

Gaseous water represents a small but environmentally significant constituent of the atmosphere. The percentage water vapor in surface air varies from 0.01% at -42 °C (-44 °F) to 4.24% when the dew point is 30 °C (86 °F). Approximately 99.13% of it is contained in the troposphere.

Answer 2

The percentage of water vapor in the atmosphere is 0.2% to 4%.

What is water vapor?

Water vapor is the state of water when it is in the hydrosphere. It can be accomplished through water evaporation, boiling of water, or ice sublimation.

percentage of water vapor in the atmosphere:

• The percentage of water vapor in air varies between 0.2 and 4 percent.
• The amount of water vapor measured in relation to the maximum amount of water vapor possible at that temperature is referred to as relative humidity.

Hence, the amount of water vapor in the atmosphere ranges from 0.2 percent to 4%.