Convection		all the earth's water
Asthenosphere		giant Ocean surrounding Pangea
Island arc		zone mantle beneath lithosphere
Terrane		transfer of heat
Lithosphere		chain of volcanic island along ocean
Ocean trench		material that make up landmass
Oceanography		thick blanket of gases surrounding earth
Geology		thin outer shell of earth
Astronomy		study of living thing and their environment
Panthalassa		community of organisms and the environment they inhabit
Geosphere		study of the structure of earth
Continental crust		study of oceans
Atmosphere		border formed by collision of 2 lithosphere plates
Meteorology		piece of land with geologic history
Convergent boundary		study of earth's atmosphere
Pangea		contamination of the environment with waste products or impurities
Ecology		solid earth
Ecosystem		all continents connected
Hydrosphere		deep valley in ocean floor
Pollution		study of the universe