Question

why we should use coal and petroleum judiciously

Answer 1

Hey

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 Coal, petroleum and natural gas are fossil fuels. Fossil fuels were formed from the dead remains of living organisms millions of years ago. ... Coal and petroleum resources are limited. We should use themjudiciously.
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Answer 2

As these minerals are fossil fuels..... So the burning of these fossil fuels by humans is the largest source of the carbon dioxide which is one of the greenhouse gases that contributes to global warming....