Please help !! a___ is the annual variation in the flow of a river

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.

An enormous wave generated by an earthquake beneath the seafloor is known as a

The poles appear to be slightly flattened in a robinson projection. question 1 options: true false