Which historic event caused the greatest change to the settlement patterns in Europe? A. First World War
B. Second World War
C. Industrial Revolution
D. Fall of the Soviet Union

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.

Which city area has the most accessible oil reserves a) caspian sea b) siberia c)arctic coast d)lake baikal

All of the following are reasons why deserts extremely susceptible to wind erosion except a. they lack major root systems b. they contain thin, dry soil c. they have very few plants and trees d. they are extremely hot and lack water