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प्रश्न
How is the presence of the ozone layer essential to preserve life on earth?
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उत्तर
The ozone layer is essential for preserving life on Earth because it acts as a protective shield in the atmosphere. It absorbs the harmful ultraviolet (UV) rays from the sun, which can cause skin cancer, eye damage, a weakened immune system, and harm to plants and animals. Without the ozone layer, these harmful rays would directly reach the Earth’s surface, causing severe damage to all forms of life.
Thus, the presence of the ozone layer ensures a safe environment for living organisms by preventing excessive exposure to UV radiation.
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संबंधित प्रश्न
Demonstrate the formation of convective currents.
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 gas protects us from the harmful ultraviolet radiation.
State whether the following is true or false.
The earth’s atmosphere contains 99 per cent oxygen, which is essential for life.
Write True or False.
Ozone is found in the troposphere.
How is the atmosphere kept in place around the earth?
This is a picture of a supersonic aircraft.
In which layer of the atmosphere does this airplane normally fly?
Name different layers of atmosphere. Describe the important characteristics of each layer.
Tick the correct answer
Which of the following layers of the atmosphere is free from clouds?
What is an important feature of Stratosphere?
Give an account of the different layers of the atmosphere.
Mountaineers carry oxygen in cylinders when they climb mountains that are more than 5000 m high. What could be the reason for that?
The study of weather is called ___________.
__________ is the great circle at the centre of the earth.
What is Magnetosphere?
Atmosphere is divided into ______ different layers.
______ found above the mesosphere.
Why mountain climbers carry oxygen while climbing?
The air envelope is thicker near the earth’s surface and we go higher the density and availability of air gradually decreases. Why?
Define troposphere.
