Small bodies are expected to have little internal heating and thus to be geologically dead, with heavily cratered surfaces. Surprisingly, only two of the five moderate-sized moons fit this description. They are:
A)Ariel and Titania.
B)Miranda and Ariel.
C)Umbriel and Oberon.
D)Miranda and Oberon.

Question

Quizplus · Accepted Answer

According to the given information, small bodies are expected to have little internal heating and heavily cratered surfaces, making them geologically dead. Out of the five moderate-sized moons, only two moons that fit this description are Umbriel and Oberon. Therefore, the correct choice is C) Umbriel and Oberon.

Small Bodies Are Expected to Have Little Internal Heating and Thus