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प्रश्न
What is responsible for causing a hole in the ozone layer?
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उत्तर
The release of a large number of CFCs or chlorofluorocarbons and BFCs or bromofluorocarbons by industries are responsible for the formation of holes in the ozone layer.
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संबंधित प्रश्न
Give role of atmosphere in climatic control.
Set up an experiment to measure gain and loss of heat by water, sand and air.
Explain in brief the different layers of the atmosphere and the basic functions of the main layers.
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.
Fill in the blank
______ per cent of the atmosphere is made of nitrogen.
Fill in the blank
The rate at which the temperature drops in the ____________ is 1°C per 165 metres.
Match the following.
| A | B | ||
| 1. | Troposphere | (i) | Ozone |
| 2. | Stratosphere | (ii) | Ions |
| 3. | Thermosphere | (iii) | Outer Space |
| 4. | Exosphere | (iv) | Lowest Temperature |
| 5. | Mesosphere | (v) | Densest Layer of atmosphere |
Make a collage using pictures or a chart to show the various causes and consequences of global warming.
What is known as troposphere?
Tick the correct answer
Which of the following layers of the atmosphere is free from clouds?
What is an important feature of Stratosphere?
Name the atmospheric layers.
What is Biosphere?
The ______ layer protects us from the harmful UV rays coming from the sun.
Match the following.
| 1. | Troposphere | Satellite |
| 2. | Stratosphere | Space craft |
| 3. | Exosphere | Ozone layer |
| 4. | Thermosphere | Meteors |
| 5. | Mesosphere | Weather change |
The upper limit of the troposphere is called as ______.
The Limit of Clouds is upto ______.
The part of atmosphere which contains gases with even composition is called ______.
The atmosphere is made of ______ different layers.
A ______ shows the direction in which the air is moving at a particular place.
