The level of the oceans' surfaces is known as level.

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.

Who were the kelvin-rus? describe who influenced them.

What term describes the government positions that officials who passed the civil service exam became a part of?