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प्रश्न
Explain the importance of nitrogen of the air for plant growth.
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उत्तर
Nitrogen of air is converted to soluble nitrogenous compounds in the soil in the presence of air and moisture. These are absorbed by plants and converted to plant proteins.
संबंधित प्रश्न
Define the term Global warming.
What do you understand by the term polluted air?
Name and briefly explain four ways by which pollution of air caused by humans is minimised.
Give a reason why nitrogen is filled in food packets and not oxygen.
Name the following:
The component of air which does not support combustion.
What is the source of carbon dioxide in air?
Why do we see the sky and air clear and clean after rainfall?
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.
During respiration, carbon-di-oxide is exhaled out of the body through the ______.
A gas that neither burns nor supports burning is ______.
