The largest craters on the Moon and Mercury are larger than those found on Earth because craters dominate the surfaces of Mercury and the Earth's Moon due to absence of water. Both moon and mercury lack liquid water on their surfaces that would remove the impact of craters with the passage of time. They also absence of an atmosphere on planets like the Earth and Venus, that could disintegrate meteoroids before they comes in contact to the surface.
Geography is land based areas and regions that were constructed by nature, (dirt,iron,ore) it relates to the construction industry because they used the materials nature has used to create the land.
