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प्रश्न
Write ‘true’ or ‘false for the following;
The major component of air is oxygen.
विकल्प
True
False
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उत्तर
False
Correct Statement: The major component of air is nitrogen.
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संबंधित प्रश्न
What is air pollution ? What are the harmful effects of sulphur dioxide, nitrogen dioxide and hydrogen sulphide present in the air ?
What are the two ways in which nitrogen fixation occurs?
Tick (√) the most appropriate answer.
Which is not a polluting gas for the air?
Briefly state the importance of Carbon dioxide.
Write down the composition of three main gases present in air by volume.
Fill in the blank
Aquatic plants and animals use _________ in water.
Fill in the blank
The reddish-brown powder on the surface of iron nails exposed to air and moisture is called _____.
State what would happen, if the air above the earth contained mainly oxygen and no nitrogen
Match the following.
| Nitrogen | Respiration in living animals |
| Oxygen | Fertilizer |
| Carbon dioxide | Refrigerator |
| Dry ice | Fire extinguisher |
______ exists in nature as silicates, carbonates, oxides, and water. It also exists in a free state as part of the air in the atmosphere.
