R15.18

Resource Description

  • There are 4 distinct spheres on Earth that make up the Earth system
  • The Lithosphere – the land masses consisting of rocks & soil near the surface of the Earth
  • The continental crust, oceanic crust & the uppermost mantle
  • The Hydrosphere – oceans, ice glaciers & snow, underground water, lakes dams & rivers
  • The atmosphere – the layer of gasses surrounding the Earth up to 350 km above the Earth
  • Composition of the atmosphere
  • The Biosphere – living things (biotic) & non-living things (abiotic).

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