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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.
Statement given below is incorrect. Write the correct statement :
Helium gas at low pressure is used for filling electric bulbs.
Name and briefly explain four ways by which pollution of air is caused by humans.
What is the significance of water vapour in air?
Write ‘True’ or ‘False’ in front of following statement.
Enamelling is the process of baking a mixture of silicates on the surface of aluminium at a high temperature.
Fill in the blank
The supporter of combustion in air is _____.
Air is made up of oxygen only.
During respiration, carbon-di-oxide is exhaled out of the body through the ______.
Air also contains a small amount of carbon-di-oxide, water vapour, and some other gases like argon,
Write just a few sentences for an imaginary situation if any of the following gases disappear from the atmosphere.
Carbon dioxide
