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deWhat are fossil fuels?
deThey are natural fuels formed in the past like coal or natural gas.
deIs oil a fossil fuel?
deYes, petroleum is a fossil fuel.
deWhy do people not like them?
deBecause they produce CO2 and pollution when they are burned.
deIs that the only reason?
deNature is also destroyed when they are extracted.
deThen why do we use them?
deBecause we can produce energy very cheaply with them.
deYou mean we burn coal and petroleum to produce electricity?
deYes, most of our electricity comes from fossil fuels.