What challenges must be addressed by regional urban areas? select all that apply.
housing shortages
moves to rural areas
pollution
population decline
provision of city services

What is the lowest output value approached by the function f(x)=2x−5?

How did the europeans design the national borders of africa? why?

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.