21 A 21 B 22 A 22 B 23 24 25 26 27 28 29 30 31 32 33 34 35 36 A 36 B 37 38 A 38 B 39 40 41 42 43 44 45 46 47 48 49 50

Lakhmir Singh & Manjit Kaur - Science

6. Combustion and Flame

Very Short Answer Type Questions

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Q. 394.2( 25 Votes )

How does pouring

Class 8th Lakhmir Singh & Manjit Kaur - Science 6. Combustion and Flame

Answer :

Water extinguishes heat by cooling down the burning substance. When water is thrown on substances, it gets cooled below its ignition temperature and also stops burning. The water vapour produced by the action of heat of fire on water surround the burning material and help in cutting off the supply of air.

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