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प्रश्न
State a reason why there is a balance in the amount of carbon dioxide in the air, even though carbon dioxide is released into the atmopshere by various processes.
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उत्तर
By the way of photosynthesis in plants which occurs during daytime, carbon dioxide and water in the presence of sunlight and chlorophyll is changed into carbohydrates and oxygen is released out.
\[\ce{\underset{\text{(in air)}}{Carbon dioxide} + Water ->[sunlight][chlorophyll]\underset{\text{(glucose)}}{Carbohydrates} + Oxygen}\]
Hence, oxygen in the air is renewed by photosynthesis, and therefore the amount of oxygen in the air does not get depleted or removed from the air.
संबंधित प्रश्न
Name and briefly explain four ways by which pollution of air is caused by humans.
Give a reason why nitrogen is filled in food packets and not oxygen.
Name the following:
An inert gas which has a low boiling point and is used for producing very low temperatures
State four different properties of a compound and a mixture.
What happens if the percentage of carbon-dioxide increases in the air?
_______ can be seen moving in a beam of sunlight in a dark room.
Arrange the following statements in correct sequence
- Plants manufacture food by a process called photosynthesis.
- Plants require energy for their growth.
- Plants take in oxygen and release carbon dioxide just as animals.
- Plants take carbon dioxide from the atmosphere, use chlorophyll in the presence of sunlight and prepare food.
- Such oxygen is available to animals and human beings for breathing.
- During this process, oxygen is released by plants.
Which gas in the atmosphere is essential for respiration?
The component of air used by green plants to make their food, is ______.
What is not true about air?
