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Pluto is made of mainly Nitrogen and Methane, and its atmosphere consists of Nitrogen, some methane, carbon monoxide, and ethane. Pluto's surface temperature is about 44 degrees Kelvin. Pluto's diameter is about 2,340 km or 1,454 miles.
Dwarf planets are made up of the same things as other planets except they are smaller.

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13y ago

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