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98 x 63 – 32 x 69 =
Would you like to use your joker to eliminate 2 incorrect answers? You can only use this once per quiz.
Fires can't burn in the oxygen-free vacuum of space, but guns can shoot. Modern ammunition contains its own oxidizer, a chemical that will trigger the explosion of gunpowder, and thus the firing of a bullet, wherever you are in the universe. No atmospheric oxygen required.