How did the size of the mongol empire compare to the muslim and roman empires at their peak ?

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.

Why is terracing used in southeast asian agriculture?

The point (-2,5) is located in quadrant