How does coal differ from oil?

1 Answer

coal is a solid fuel.It can not be used internal combustion engines.

Explanation:

COal contain lot of ash.So waste disposal is a huge problem\
Being solid transporting coal is ore difficult
coal p[produce more pollution due to its ash contents..,.
OIl have more calorific value and is easy to transport.
Production of oil is easy.But mining coal is more difficult hazardous process.