Question

Short question answers from combustion and flame

Answer 1

Combustion is any process in which a substance combines with oxygen to produce heat and light. Example is:-
Cars run because their engines use combustion to get the cylinders to fire.

A flame is a hot bright stream of burning gas that comes from something that is burning. Example is:-
The heat from the flames was so intense that roads melted.

Answer 2

Answer:

Very Short Answer Questions

Question 1.

Name the most common fuel used in homes.

Answer:

Liquefied Petroleum Gas. (LPG)

Question 2.

Name the most common fire extinguisher.

Answer:

Water

Question 3.

What are the states in which a fuel may exist?

Answer:

A fuql may exist in solid, liquid or gaseous state.

Question 4.

Name any two combustible substances.

Answer:

Charcoal, wood

Question 5.

Does magnesium produce heat and light during its combustion?

Answer:

Yes, it does.

Question 6.

What acts as a fuel for our body?

Answer:

Food

Question 7.

Give two examples of non-combustible substances. .

Answer:

Water, sand

Question 8.

How are heat and light produced in the sun?

Answer:

In the sun, heat and light are produced by nuclear reactions.

Explanation:

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