The ______ period on Mars is characterized by heavy bombardment, flooding, and volcanism.
A) Tharsis
B) Deimos
C) Amazonian
D) Noachian
E) Hesperian

Question

Quizplus · Accepted Answer

The Noachian period on Mars is characterized by heavy bombardment, flooding, and volcanism. This period, which lasted from about 4.5 to 3.7 billion years ago, shaped much of the planet's surface and created features such as the huge impact basins and channel-like valleys.

The ______ Period on Mars Is Characterized by Heavy Bombardment