#1: which mountains separate european russia from asian russia?

a. caucasus

b. zagros

c. lena

d. ural

Which of the following planets is classified as a terrestrial planet? a. neptune b. venus c. saturn d. jupiter

All of the following statements about the biosphere are true except: a. light and heat from the sun do not affect the biosphere. b. the biosphere gets resources from earth's crust, hydrosphere and atmosphere. c. like "biology", the name for the biosphere comes from the greek word for life. d. the biosphere includes all living organisms on earth's surface.

Name the two rivers that run through the fertile crescent. how were the rivers both positive and negative to societies of the fertile crescent?