Why are the sierra nevada lakes very sensitive to changing climate? . a. because of extensive bedrock and little soil. b. because of its proximity to the west coast. c. because of its low water levels. d. because of the sharp climate changes in the area

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.