Are there natural hazards that are more likely to occur in the great plains?

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.

According ti the following map, what are the most common mineral resources found in the united states?

Democratic vs democratic whats the difference? ?