Which of the following objects in the solar system has the smoothest surface relative to its radius?
A) Io,the volcanic moon of Jupiter,whose surface is continuously coated with volcanic material
B) Earth,with its oceans and molten interior that both allow readjustment of the surface
C) Mercury,in view of the intense solar radiation that has melted and smoothed the surface
D) Europa,a moon of Jupiter coated with water ice

Question

Quizplus · Accepted Answer

Europa has the smoothest surface relative to its radius among the given objects in the solar system. Its surface has been smoothed over by the flow and freezing of water ice, and is relatively free of large impact craters due to the constant resurfacing.

Which of the Following Objects in the Solar System Has