Question

Mention the role of water vapour in the troposphere.

Answer 1

Role of Water Vapors:

1. Water vapor is the gaseous form of water present in the atmosphere, originating from evaporation and transpiration.
2. It absorbs part of the incoming solar radiation and also traps the Earth’s radiated heat, acting like a blanket that prevents the Earth from becoming too cold or too hot.
3. Water vapor is essential for weather phenomena, as it is the source of all clouds and precipitation.
4. When water vapor changes its physical state (solid, liquid, gas), it absorbs or releases latent heat, influencing atmospheric stability or instability.
5. Water vapor condenses around dust particles (condensation nuclei) to form clouds and eventually precipitation rain, snow, fog, dew, etc.