48: 13 which improvement in navigation technology allowed sailors to use celestial bodies to determine latitude?

¿cual es mas alta en baja california,la migracion o la inmigracion?

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.

What gigantic island is primarily in the arctic circle?