Question

distinguish between the firewood and coal​

Answer 1

Charcoal is wood that has been heated without access to air. Thus it can't burn. The carbon remains but most of the other chemicals in the wood are driven off by the heat. So you have a piece of carbon, more brittle than wood and black.

Answer 2

Answer:

firewood

1)it is easily available.

2)low expensive

coal

1)does not easily available

2)high expensive