Astronomy The Solar System

Flows of material surrounding Martian craters suggest

Which of the following statements is an example of comparative planetology?

Secondary craters are

The small peak found in some meteor craters is

Rays and secondary craters are created by ________ when craters are formed during a collision.

Rocks less than 100 meters (m) in diameter are called ________ when they are in space.

Space rocks less than 100 m in diameter, when they hit the ground, are called

Space rocks less than 100 m in diameter, when they burn up in the atmosphere, are called

To survive passage through Earth's atmosphere without burning or breaking up before it hits the ground, an asteroid must be

Which of the following is a factor that helps explain Earth's lack of craters compared to the Moon?

Based on the number of impact craters observed per square meter on their surface, place these terrestrial planets in order from youngest to oldest surface.

According to studies of impact cratering, which of these terrestrial objects has, on average, the oldest surface?

Compared to the dark-colored regions of the surface of the Moon, the light-colored regions are approximately

Mars, Venus, and Earth are much less heavily cratered than Mercury and the Moon.This is explained by the fact that

The smallest number of craters per square meter are found on the surface of

Which of these three lunar surfaces shown in the figure below is the oldest?

Which of the three lunar surfaces shown in the figure below is the youngest?

Which answer gives the correct order of the age of the three lunar surfaces shown in the figure below, from youngest to oldest?

Based on the age of the light- and dark-colored regions of the Moon and the number of craters observed in these regions, we know that impacts in the inner Solar System

Studies of the amount of cratering at different locations on the Moon indicate that