Question

Fill in the blanks-
1. Substances which give off heat and light after burning are called__________.
2. A metarial starts burning at__________temperature.
3. ____________does not give flame on combustion.
4. Fuel produces__________and___________ energy on combustion .
True or false-
1. Oxygen is used to extinguish fire.______
2. carbon dioxide is required for burning._______
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Answer 1

Explanation:

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Answer 2

Answers :–

Fill ups :-

1. Combustion.

• Substances which give off heat and light after burning are called combustion.

2. Iginition.

• A metal starts burning at iginition.

3. Charcoal.

• Charcoal does not given flame on combustion.

4. Heat, carbon dioxide.

• Fuels produces heat and chemical energy on combustion.

True of False :-

1. False.

• Oxygen doesn't used for extinguisher fire.

2. True.

• Carbon dioxide is required for burning something.