Answer:
The correct answer is D.
Explanation:
Neptune Triton's moon is a satellite located 4500 million kilometers from the Sun. It is one of the coldest stars in the solar system. It is one of the few satellites in the solar system known to be geologically active. The existence of liquid nitrogen geysers emanating from its icy surface changed the concept of volcanism. Ice bodies were not supposed to be geologically active. Triton demonstrated that for there to be geological activity it is enough for a fluid medium to be molten rock, nitrogen or water.
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