/r/askscience
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Were fires uncommon phenomena during the early Earth when there wasn't so much oxygen produced from photosynthesis?
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If everyone was required to stay at home for 2 months with zero contact with other people could we wipe out the cold/flu forever?
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If I'm addicted to cigarettes and feel a physical urge to smoke every hour I'm awake, why don't those urges interrupt my sleep at night?
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