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
How does the average temperature of Earth remain fairly steady?
We often leave the lights switched on and fans running when we are not in the room. We switch on the air-conditioning even though we don’t really need it. We insist on being dropped to school in the car every day. Thus, we waste valuable energy which is generally produced by burning coal and petroleum. As you know, the burning of these fuels release gases that pollute the atmosphere.
Make a list of the similar things that we do without realizing that we are destroying the environment. Think of the ways that we can behave differently.
Choose the correct answer.
This per cent of the atmosphere is composed of nitrogen.
Choose the correct option.
The ozone layer is found between _______ km above the earth’s surface.
This is a picture of a supersonic aircraft.
This layer of the atmosphere is also known to protect living beings from the harmful rays of the sun. How?
Answer the following question briefly:
Name the different layers of atmosphere.
The atmospheric layer, which lies beyond the exosphere is ______.
A layer of Ions inside the Mesosphere is called ______.
The part of atmosphere which is consisted of variable gases with uneven composition is called ______.
Give reason:
Thermosphere is also referred to as “Heterosphere”.
