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प्रश्न
List out the uses of carbon dioxide.
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उत्तर
- Carbon dioxide helps plants in photosynthesis.
- It is used in fire extinguishers.
- It is used in refrigerators as dry ice for cooling purpose.
- It is used to make plastics and polymers.
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संबंधित प्रश्न
Write ‘True’ or ‘False’ in front of following statement.
The trapping of solar heat energy in the earth’s atmosphere is called greenhouse effect.
Name and briefly explain four ways by which pollution of air is caused by humans.
What are the main components of air?
Give two examples of modern fuels.
Give reason:
A burning candle stops burning if covered with a glass tumbler
State what would happen, if the air above the earth contained mainly oxygen and no nitrogen
Name the following:
The product of respiration released in exhaled air, other than carbon dioxide.
Name the following:
An inert gas which has a low boiling point and is used for producing very low temperatures
Which of the following is true about oxygen?
Nitrogen is _______ than air.
