Although wood has a very high


Although wood has a very high calorific value, we still discourage its use as a fuel. Explain.


Burning of wood has several disadvantages. These are as follows:

(i) Burning of wood produces a lot of smoke which causes respiratory diseases.

(ii) The cutting down of trees to obtain as a wood fuel leads to deforestation which is very harmful to the environment.

(iii) Trees provide us many-useful substances. To obtain fuel wood, when trees are cut down, then all useful substances which can be obtained

from trees are lost.

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