Question

why do you have to use paper or kerosene oil to start fire in wood or cool ?​

Answer 1

Answer:

The ignition temperature of wood or coal is higher and it requires more heat to start burning. This is the cause that to start a fire in wood or coal paper or kerosene oil is used as the ignition temperature of paper or kerosene oil is lower than that of wood or coal.

Answer 2

As the ignition made by matchsticks or lighters are not enough to burn wood or coal, hence we require to burn paper or kerosene oil as they provide enough heat to start the combustion of wood or coal.