state three disadvantage of fossil fuels use (with reason)
Disadvantages of Fossil fuels :
1) Non renewable source of energy : Since it takes million of years to form fossil fuels .Thus once it ends it will be no longer available to us.
2)Global Warming : Since fossil fuels release lots of smoke and carbon dioxide in air they are causing global warming.
3)Deforestation : Mining of coal leaves acres of land barren and causes deforestation and the effects are irreversible.