The exact internal composition of Pluto is still unknown, but it is described as being both rocky and icy.
ice
it is mostly made up of water ice and the center is believed to be metalic
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.
Monkeys
2.03g/cm3
it rotates to the right
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meh
1,134 km
Yes it is
Pluto has no atmosphere