Describe and ecoregion and give an example

Which country is currently the most populated country in the world? a. india b. china c. mongolia d. indonesia

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.

What is the approximate chemical composition of the solar nebula?