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2 votes
When did humans begin to use fossil fuels as their primary source of energy?

renaissance
ancient times
middle ages
industrial revolution

User Orschiro
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2 Answers

6 votes
I'm pretty sure it's Middle Ages
User Kalina
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5 votes
Hi there!

Your correct answer is the Industrial Revolution.

SOURCES:
I literally JUST took this quiz :P
User Chris Smith
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