What is believed to be the cause of the long,meandering scarps (cliffs)observed on Mercury?
A) Shrinkage of the planet as Mercury cooled
B) Large impacts near the end of the early period of heavy bombardment
C) Volcanic eruptions along crustal faults over hot spots in the mantle
D) Crustal movement due to convection in the mantle,similar to continental drift on Earth but to a much smaller extent

Question

Quizplus · Accepted Answer

The long, meandering scarps on Mercury are believed to be a result of the planet's shrinkage as it cooled. As the planet cooled, its interior contracted, causing the surface to wrinkle and crack. This resulted in the formation of the scarps, which can be seen on Mercury's surface.

What Is Believed to Be the Cause of the Long,meandering