The mixing of harmful substances in the air is called _______

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Solution

The contamination of air by unwanted substances is called air pollution.
These contaminated substances are harmful to both living and non-living things.
For example - Volcanic ash, chemicals gases released from the chimneys which choke our lungs.
Hence, the mixing of harmful substances in the air is called air pollution

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Q. Replace the following with a word or a phrase.
(a) air in motion
(b) the liquid used to test for carbon dioxide
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(g) a poisonous gas given out from the exhaust pipes of cars.
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(a) ………… is produced under the skin in early morning sunlight.

(b) Deficiency of vitamin C causes a disease called ………… .

(d) Taking intoxicating substances has adverse effects on the ………… .

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(b) A substance that dissolves in a liquid is called a ………… .

What is a combination of substances called which is formed by just physical mixing?

When air is contaminated by ________ substances which have a ________ effect on both the ________ and ________, it is referred to as ________. (air pollution, harmful, living, unwanted, non-living, pollutants).

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