Question

please answer all questions ???
!!!! I mark you as brainlist !!!!

Answer 1

5.fossil fuels are non renewable. This means that they take more than the average human life to renew themselves .
secondly they also cause pollution that is why they should be used judiciously
6. Coke is a fuel with high carbon content and few impurities,made by heating coal at the absence of air
7.coal gas is a mixture of gases like Hydrogen Methane and carbon dioxide produced by the destructive distillation of coal it is a flammable gas
8.Coal Tar is the black and brown liquid of extremely high viscosity.it is a byproduct of coal
9.natural gas is a fossil fuels used as a source of energy for heating .it is also used as a fuel for vehicles