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प्रश्न
Fill in the blank
The supporter of combustion in air is _____.
रिकाम्या जागा भरा
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उत्तर
The supporter of combustion in air is oxygen.
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| 1 | An impurity in air | A | Water vapour |
| 2 | The component of air which supports combustion | B | Respiration |
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| 4 | The component of air which minimizes the rate of evaporation | D | Sulphur dioxide |
| 5 | The process which involves oxidation of food substance in living organisms | E | Helium |
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| 10 | The component of air which is lighter than air and less than 1% in air | J | Oxygen |
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