1. Describe the role played by water vapour and dust particles in the atmosphere.
Answers
Answer:
The water vapour and dust particles are the important elements of weather andclimate. They are sources of all forms ofcondensation and principal absorbers ofheat received from the sun or radiated from the earth. ... The amount of water vapour in the atmosphere decreases from the equator towards the poles.
Explanation:
The selective scattering of solar radiation by dust particles make the sky appear blue. Dust and salt particles act as hygroscopic nuclei around which water vapour condenses to produce clouds. Thus there is a great significance of small solid dust particles (the particulate matter) in the atmosphere.
Water vapor is also the most important greenhouse gas in the atmosphere. Heat radiated from Earth's surface is absorbed by water vapor molecules in the lower atmosphere.Thus, water vapor is a second source of warmth (in addition to sunlight) at the Earth's surface.