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प्रश्न
Discuss harmful effects of greenhouse effect.
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उत्तर
Large amount of carbon-dioxide in the polluted air results in increase of greenhouse effect which has raised the average temperature of the Earth by 2°C. This results in global warming which, in turn, will melt ice on the polar caps, thereby raising the level of sea water by a few metres. This can result in submerging of coastal areas and islands causing excessive damage.
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संबंधित प्रश्न
What is wind?
Name two important processes supported by oxygen present in air.
Fill in the blank
Although we cannot see air, we can ___it.
Fill in the blank
Air is a ______ of gases
What is meant by the term ‘atmosphere’? State the role played by the atmosphere for the survival of mankind.
Water does not have a ______ but has definite ______ and ______.
State whether the following statement is true or false.
The pressure exerted by air is called atmospheric pressure.
Fill in the blank:
The gas evolved as a product of combustion as well as respiration is ______.
The layer of air around the earth is known as ______.
______ is important for all living creatures.
