Advertisements
Advertisements
प्रश्न
How are clouds formed?
Advertisements
उत्तर
During day time, on being heated, a large amount of water evaporates from various water bodies and goes into the air. A part of this water vapour also reaches the atmosphere through biological activities such as transpiration and respiration. This causes the air in the atmosphere to heat up. When this heated air rises, it expands and cools, which results in the condensation of water vapour forming water droplets. The presence of dust and other suspended particles in air also facilitates the process of condensation. The formation of water droplets leads to the formation of clouds.
संबंधित प्रश्न
Explain the importance of carbon dioxide for (a) photosynthesis (b) warming the earth’s environment. State what would happen if excess carbon dioxide as a pollutant is released into the atmosphere.
What would happen to the earth if the atmosphere disappeared?
Choose the correct answer.
21 per cent of the atmosphere is composed of
Fill in the blank:
The ozone layer protects us from the _____________ of the sun.
Tick the correct answer
Which of the following gases protects us from harmful sun rays?
State whether the following sentence is true (T) or false (F).
The atmosphere is composed mainly of nitrogen and oxygen.
Name the atmospheric layers.
Why is Heterosphere called so?
The uppermost layer of the atmosphere is ______.
The atmosphere is made of ______ different layers.
