Question

What happens when coal is heated in air?

Answer 1

Explanation:

Coal, when burnt in presence of air, produces both carbon monoxide and CO2. For burning or combustion, oxygen is very essential. Air, fuel and heat are the necessary conditions for burning..........

I hope it will help you .......

Answer 2

1. causes air pollution

2. develops breathing problems

3. causes harm to plants

4. the ozone layer is badly affected