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प्रश्न
How will you prove that air supports burning?
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उत्तर
Take a candle. Place it in a tub. Light the candle and also fill the tub with some water. Cover the candle with an inverted glass. You will find that the candle blows out after burning for some time, and the water level inside the inverted glass rises up to some extent.
The component, oxygen, of air inside the glass is used up in burning. Therefore, water occupies that space. This shows that air supports burning.
संबंधित प्रश्न
Define the term Global warming.
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Explain the conversion of nitrogen into nitrates during lightning.
What is the significance of water vapour in air?
What are the main components of air?
Give reason:
A burning candle stops burning if covered with a glass tumbler
Fill in the blank
Aquatic plants and animals use _________ in water.
Name the following:
An inert gas which has a low boiling point and is used for producing very low temperatures
The amount of water vapour in the air is more in windy places than in other areas.
