/u/[deleted]'s posts in /r/askscience
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How high can a mountain get on earth? Were there any mountains larger/ taller than the Himalayas in earth's distant past?
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How is it possible to say that the universe is constantly expanding, and that it has no boundaries. If it doesn't have boundaries, how can it expand?
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Does food coloring have an effect on children/infant's behavior? As a parent, I've heard this numerous times but not sure if it's an urban legend or based on science.
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