Question

combustion.
and
E. FILL IN THE BLANKS
1. Generally, fire in a coal mine is a kind of
2. A good fuel has a
calorific value.
3. Acid rain is caused due to dissolved oxides of
4. Burning of fuels leads to
air
pollution.
5. Water, glass, steel are
substances.
nitrogen
sulphure
-AICC​

Answer 1

Explanation:

1. Spontaneous combustion

2. high

3. Nitrogen and sulphur

4. Pollution

5. Impure

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Answer 2

Answer:

what

Explanation:

i dont understand that