Final answer:
Mercury has more craters than Earth or Venus because it is closer to the Sun, has a smaller core and less resilient surface, lacks geological activity and an atmosphere, and formed earlier.
Step-by-step explanation:
Mercury has far more craters than Earth or Venus due to several reasons. First, Mercury is located closer to the Sun, making it more likely to collide with asteroids. Second, Mercury has a smaller core and a less resilient surface, which means that impacts are more likely to create craters.
Third, Mercury is not geologically active and lacks an atmosphere, so craters are not eroded over time. Finally, Mercury formed earlier than Earth or Venus, giving it a longer period of time to accumulate craters on its surface.