How old do you have to be to fly on an airplane by yourself? without an id?

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.

Which of the following statements about wearher along mountain ranges is correct

Suppose you had to resolve the problems believed to be caused by distance decay in russia. what would you suggest?