Does a sheet of paper accurately represent a plane?

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.

The ratio of the measures of the three angles in a triangle is 14: 15: 11 find the measures of the angles

What geologic process is related to caldera formation?