Question

What accounts for absence of water vapour in stratosphere?

Answer 1

Absence of water vapor in stratosphere:

• The ozone layer is found in the stratosphere.
• The ozone layer protects us from the sun's ultraviolet radiation (UV).
• The ozone layer absorbs the majority of the ultraviolet light that the sun emits.
• Without this layer of defense, life as we know it would be impossible.
• Increased humidity in the stratosphere is caused by higher surface temperatures, such as those caused by the addition of carbon dioxide to the atmosphere.

Answer 2

Answer:

The stratosphere is very dry air, so it doesn't contain water vapor.

Explanation:

• Water vapor in the stratosphere plays role in climate.

• Increased surface temperatures, such as the addition of carbon dioxide to the atmosphere, leads to increased humidity in the stratosphere and lead to additional warming because the water vapor in the stratosphere is a greenhouse gas.
• Also, the stratosphere is just above the troposphere, wherein the troposphere the temperature and water vapor content in the troposphere decrease rapidly with altitude.
• So, when we reach the stratosphere from the troposphere the water vapor gets evaporated.

So, this is the reason why the stratosphere has no water vapor.

• the stratosphere has the ozone layer which would protect us from greenhouse gases and sunlight.