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प्रश्न
Write ‘True’ or ‘False’ in front of following statement.
The area where a lot of fuel burns has more percentage of carbon dioxide.
विकल्प
True
False
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उत्तर
True.
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संबंधित प्रश्न
Name and briefly explain four ways by which pollution of air caused by humans is minimised.
What happens when Carbon burns in oxygen ? Also give the balanced chemical equation for the reaction.
Give a reason why nitrogen is filled in food packets and not oxygen.
Name the following:
The component of air which is present more in industrial areas.
Give word equation for the following conversion:
Nitrogen of the air to nitric oxide
What is the percentage of nitrogen in air?
Match the following
| 1. | Moving Air | Photosynthesis |
| 2. | Layer in which we live | Troposphere |
| 3. | Stratosphere | Wind |
| 4. | Oxygen | Ozone layer |
| 5. | carbon-di-oxide | Combustion |
Can you guess why fire extinguishers throw a stream of carbon-di-oxide while putting - off the fire?
______ is the main component of air.
Nitrogen is about two times more soluble in water than oxygen.
