Question

i)
Which gaseous component of air does not support burning?
ii)Which component of air is essential for respiration?
iii) Which component of air is used by green plants for making food?
iv) Which component of air condenses on coming in contact with a cool surface?​

Answer 1

Answer:

Explanation:

The major part of air (which does not support burning candle) is nitrogen.

Oxygen gas in the atmosphere is essential for respiration.

The component of air used by green plants to make their food is carbon dioxide gas.

condensation condenses on coming in contact with a cool surface

Answer 2

Answer:

Answers are down below

Explanation:

Ans-1 nitrogen

Ans-2 oxygen

And-3 carbon dioxide

Ans-4 water vapour

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