What is the outermost later if the sun

Write a short paragraph of about 150-300 words. explain how the physical environment can limit human activities.

Why does a tidal bulge occurs on opposote sides of earth

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.