Why are impact craters more common on the Moon and Mars than on Earth?
A)the Moon and Mars have thinner atmospheres
B)more meteoroids approach the Moon and Mars
C)the Moon and Mars consist of stronger rock that preserves craters better
D)meteorites striking Earth are typically larger

Question

Quizplus · Accepted Answer

The Moon and Mars have thinner atmospheres compared to Earth. This means that meteoroids are less likely to burn up in the atmosphere and more likely to impact the surface, resulting in more impact craters on these planets.

Answer: B 
 It is believed that more meteoroids approach the Moon and Mars compared to Earth, resulting in more impact craters on these planets. This could be due to differences in gravitational influence, distribution of asteroids and comets in the solar system, or other factors.

Answer: C 
 The Moon and Mars consist of stronger rock that preserves craters better compared to Earth. Due to Earth's tectonic activity and erosion processes, impact craters on Earth are often erased or obscured over time.

Answer: D 
 This statement is not true. Meteorites striking Earth are not typically larger than those striking the Moon or Mars, and size is not a significant factor in determining the frequency of impact craters.

Why Are Impact Craters More Common on the Moon and Mars