Question

B. Fill in the blanks :

1.is a supporter of combustion since it helps a combustible substance to burn.
2. The minimum temperature at which a combustible substance starts burning is called its
occurs when a cracker is ignited.
3.
are devices used to extinguish fires.
4.
5.
glow emitting a yellow light when a candle is burnt.
6. An ideal fuel should burn at a
rate to produce a large amount of heat.​

Answer 1

Answer:

1 _Oxygen

3_not devices but fore extinguisher

Answer 2

Answer:

sorry I didn't know

Explanation:

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