Bio-fuels and Non-renewables

________ cause serious environmental problems, affecting mammals and birds that live in and around the sea.

________ are fairly reliable, however they can not respond to immediate energy demand.

________ and nuclear energy are reliable.

________ can reduced by taking the sulfur out before the fuel is burned or cleaning up the emissions.

________ is clean but the waste is very dangerous and difficult to dispose of and carries the risk of a major disaster.

Burning coal and oil also release sulfur dioxide, which causes ________- which can be harmful to trees and soils.

________ are made from Plants and Waste.

They can be solid, liquid or gas and can be burnt to produce electricity or run cars in the same way as ________.

________ are renewable energy resources created from either plant products or animal dung.

Fossils fuels can respond to_______