Chemistry, asked by reverseflashgenius, 11 months ago

Least efficient fuel is
(1) Coal
(3) Wood
(2) Cow-dung cake
(4) LPG

.​

Answers

Answered by foram70
1

cow dung cake

PLEASE MARK AS BRAINLIEST ANSWER.

Answered by kumar003
4

The least efficient fuel is wood.

because wood causes deforestation also wood is incomplete burning fuel which gives remains such as coal, ash, etc.

Wood burning also causes air pollution.

hope it helps...

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