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प्रश्न
How will you show that air is dissolved in water?
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उत्तर
To show that air is dissolved in the water we take water in a pan and heat it. Just before it boils, you will notice some bubbles at the inner surface of the pan. These bubbles are formed because of air dissolved in water.
संबंधित प्रश्न
Fill in the blanks :
_______ and ______ are the most common air pollutants.
Fill in the blank space by choosing the correct word from the given list.
List: oxygen, carbonic, suIphurUioxide gas, precipitation, helium
Dust particles help in the ________ of water vapour in air.
Give reason:
A burning candle stops burning if covered with a glass tumbler
Complete the statement given below by filling in the blank with the correct word from the words given
___________is an example of a pollutant present in the air.
What is the percentage of nitrogen in air?
List uses of oxygen.
______ present in the air is needed for respiration.
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.
Nitrogen
