Question

6 Presence of water vapor is essential in air. Why?

Answer 1

• Air contains water vapour.
• When air comes in contact with a cool surface, the vapours present condenses, and drops of water appear on the cooled surface.
• The presence of water vapour in the air is important because it helps the movement of water in the water cycle.
• The water cycle is the continuous transfer of water from the earth to the atmosphere as water vapour and back to the earth as rain. The water cycle is made up of the sun and water bodies such as oceans, seas, rivers, and lakes.