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OOps.Can't you read, AG? There's a comma between those two words in the O.P.'s question.
Both are used in the generation of electricity, of course. And without electricity electronics hobbyists would be extinct. (ugh, I hate these new smileys)What does coal and oil have to do with electronic circuits??
Ah, but to manufacture the batteries oil or coal is probably used to process the chemicals and parts which make up the batteries and to produce the electrical energy required by the machines which assemble the batteries!Batteries don't use coal or oil. They make electricity.
Not all coal plants are polluting.OOps.
Coal is used by polluting US electricity generating stations. The air pollution from Chicago comes to my part of Canada.
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