/r/askscience
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AskScience AMA Series: We're NASA & Harvard-Smithsonian scientists working on TEMPO, a new space mission that will give us an unprecedented look at air pollution across North America. Ask us anything!
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Are any emotions[like shame or disgust] completely learned? Are there any tribes without concepts of shame for example? What emotions do we take for granted?
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Why is there such a controversy behind adding fluoride to water? What risks could adding fluoride to water present?
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Is it possible for animals to suffer from gigantism? If so what animals (other than humans) suffer from it?
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