rocky and blue
Go rub a rock
comet
Geysers are caused by pressure under the earth's serface, kind of like a tea kettle, the magma heats the under waters springs untill it explodes. So geysers are found near hotsprings deep below the serface.
plutos core kills us from coldness
Yes. Charon, Plutos largest moon, is about 1200km in diameter, while Plutos diameter is around 2322km, so Plutos diameter is about twice the size. In terms of volume though, Pluto is around 7.4 times as big.
geology
Monkeys
if you have a 3d cuboid it is the smooth serface
2.03g/cm3
it rotates to the right
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meh