A) Mercury and the Moon have more surface area compared to their
volume so they get hit by more asteroids
B) Mercury and the Moon formed earlier than the Earth and Venus so
they have had more time to collect craters
C) Everything burns up in the atmosphere of Earth and Venus, but
Mercury and the Moon don't have thick atmospheres so they have no
protection
D) Venus and the Earth have younger surfaces so old craters have
been erased
E) The Moon and Mercury are made of softer, more easily cratered
material
volume so they get hit by more asteroids
B) Mercury and the Moon formed earlier than the Earth and Venus so
they have had more time to collect craters
C) Everything burns up in the atmosphere of Earth and Venus, but
Mercury and the Moon don't have thick atmospheres so they have no
protection
D) Venus and the Earth have younger surfaces so old craters have
been erased
E) The Moon and Mercury are made of softer, more easily cratered
material