Question

combustible substance know as​

Answer 1

Explanation:

The substances which undergo combustion are known as combustible substances. It may also be called a fuel. Sometimes, heat is accompanied by light, either as a flame or as a glow, during combustion. (a) Charcoal burns in air to give carbon dioxide and heat.

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Answer 2

Answer:

Explanation:The substances which undergo combustion are known as combustible substances. It may also be called a fuel. Sometimes, heat is accompanied by light, either as a flame or as a glow, during combustion. Fuel may be solid, liquid or gas.