Question

Medal

Which energy source causes greater air pollution?



coal

oil

Answer 1

caol?

Answer 2

(I meant coal..)

Answer 3

This one is hard....

Coal is burned for energy, resulting in fires, black smoke, et cetera.... That kind of carbon overload on the Planet has cause \(\cal\normalsize{so~much}\) pollution in the air.
Oil is also burned, and cars use it the most. A recent study conducted says that there are more cars than people in the world. If cars are constantly letting out their smoke while driving, then it does basically the same thing. I really don't know about this one. :/