Why did the continents not possibly move the way alfred wegener described it

If we represent the solar system on a scale that allows us to walk from the sun to pluto in a few minutes, then a) the planets are microscopic and the stars are millions of miles away. b) the planets are the size of basketballs and the nearest stars are a few miles away. c) the planets are marble size or smaller and the nearest stars are thousands of miles away.

What is the thickest layer of earth called?

How much damage is done by landslides in a typical year in the u.s.?