What is the ghana empire famous for ?

What part did glaciers play in forming the great lakes?

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.

Mosses, lichens and shrubs can be found where in russia? a. grasslands b. mountain regions c. coastal plains d. siberian tundra