Question

a) Define combustion.​

Answer 1

Answer:

A chemical process in which a substance reacts with oxygen to give off heat and light is called combustion. The burning of wood is an example of combustion.

Answer 2

$\colorbox{black}{ \color{red} \huge{{\textbf{answer}\newline}}}$

Combustion is a chemical process or a reaction between Fuel (Hydrocarbon) and Oxygen. When fuel and oxygen react it releases the heat and light energy. Heat and light energy then result in the flame.Combustion is used in car motors and rocket engines and many other machineries