Question

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Answer 1

1) Chemical change

2)

Answer 2

Answer:

1.To burn paper or a piece of wood, we heat it before it catches fire. We generally do it with a lighted match.

2.Pour baking soda on a broken cord

3.This means water can spread the fire if the fuel is light enough to be carried.

4.The carbon dioxide considered the best fire extinguisher to put off fires caused by burning of inflammable liquids such as petrol or oil

5.Gaps are left-between building during construction to reduce the risk of fire.

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