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प्रश्न
Name two important processes supported by oxygen present in air.
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उत्तर
Two processes supported by oxygen present in air are:
- Combustion
- Respiration
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संबंधित प्रश्न
Match the statements in Column A, with those in Column B.
| Column A | Column B |
| 1. Largest Constituent of air, which dilutes the activity of oxygen. | (a) Oxygen |
| 2. A gas used for filling weather observeation balloons. | (b) Carbonic acid |
| 3. An acid formed by the dissolution of sulphur dioxide gas in water. | (c) Sulphuric acid |
| 4. An acid formed by the dissolution of carbon dioxide in water. | (d) Helium |
| 5. A gas vital for respiration. | (e) Nitrogen |
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Air consists of
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Air is a mixture and not a compound since the components of air cannot be separated by physical methods.
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Wind does not help in the movement of which of the following?
