6b) If it is true that asteroids and comets have always been raining down on the moon, then is Clavius a young crater or an old crater? 6c) which neighboring crater is older, Scheiner or Blanchanus? please explain. 6e) Generally speaking, which sides of the crater walls is steeper, inner or outer? 6f) Generally speaking, do the crater floors appear to be above, level with, or below the general level of the regions surrounding the craters? Why is this the case? 6g) Why are crater floors smoother than their surroundings?

6b) If it is true that asteroids and comets have always been raining down on the moon, then is Clavius a young crater or an old crater? 6c) which neighboring crater is older, Scheiner or Blanchanus? please explain. 6e) Generally speaking, which sides of the crater walls is steeper, inner or outer? 6f) Generally speaking, do the crater floors appear to be above, level with, or below the general level of the regions surrounding the craters? Why is this the case? 6g) Why are crater floors smoother than their surroundings?