How do I avoid grieving the living? What's up with Dr Pepper Zero? Would explosions have flames in space? Who is "y'all"? Can a box be round or oval? How can water be oxygen rich? How do you keep one perfect book from ruining all others for you? Hank Green and John Green have answers!

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Join us for monthly livestreams at patreon.com/dearhankandjohn.

Follow us on Twitter! twitter.com/dearhankandjohn

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