What formation or formations are evidence that the planet Mercury may have shrunk (gotten a bit smaller) as it cooled?
A) the Caloris basin
B) the large basins in general
C) the long scarps or cliffs
D) the thin atmosphere emerging from inside the planet
E) the big ticket with size 8 crossed out and size 6 written in

Question

Quizplus · Accepted Answer

The long scarps or cliffs on the surface of Mercury are evidence that the planet has shrunk as it cooled. The scarps are caused by the planet's crust compressing as the interior cooled and contracted. The other options do not provide evidence for the planet shrinking.

What Formation or Formations Are Evidence That the Planet Mercury