Question

Coal and petroleum are called fossil fuels. How it is causing global warming?

Answer 1

they have harmful gasses in them and when it Is burnt then the harmful gasses mix in atmosphere and causes global warming

Answer 2

When these fossil fuels are burnt in the atmosphere in excess amounts, they emit a lot of gases which may be poisonous.... Some gases have the ability to trap heat, known as green house gases and these gases increase the global temperature and cause global warming