The plumes that were seen to rise from the surface of Triton, Neptune's largest satellite, are believed to be:
A)sulfur dioxide from geysers heated by tidal stresses.
B)volcanic ash from eruptions similar to, but much smaller than, an Earth-bound eruption.
C)water, methane, and ammonia ice crystals above volcanic vents.
D)dark material projected upward by nitrogen gas released by sunlight warming the surface or by undersurface heating.

Question

Quizplus · Accepted Answer

The plumes on Triton are thought to be caused by nitrogen gas, which is released either by the warming effect of sunlight on the surface or by heating from beneath the surface. This process propels dark material upward, creating the observed plumes.

The Plumes That Were Seen to Rise from the Surface