Why are there no smaller craters on the surface of Venus, only bigger ones?A. The seas and lakes of Venus erode away all the smaller craters when they floodB. Venus is so hot that smaller craters generally melt in the heat, becoming smooth surfaceC. Because Venus is so close to the Sun, the Sun's gravity pulls all smaller chunks of material into the Sun before they can reach VenusD. This is an unsolved mystery in astronomy; no one knowE. In Venus' thick atmosphere all smaller chunks of material burn up before they can reach the surface