Spheres

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Spheres
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The Geosphere

• The term geosphere refers to the dense, solid
  parts of the Earth that are made mostly of rock.
• The geosphere is sometimes called the lithosphere.

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The Hydrosphere

• The Earths hydrosphere consists of water in all
  forms the oceans, seas, lakes, rivers,
  underground water, and atmospheric water vapor
  (clouds).

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The Blue Planet

• The Earth is called the Blue Planet because of
  the abundance of water on the Earth.
• About 70 of the Earth is covered by water.

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The Atmosphere

• The atmosphere is the layer of gases that
  surrounds the Earth.
• Earths atmosphere is made up of mostly nitrogen
  and oxygen.
• All meteorological and weather phenomena takes
  place in the atmosphere.

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Biosphere

• The biosphere is the sphere associated with
  living systems such as biomes or ecosystems. This
  includes life on land, in the oceans and rivers,
  and even life that we cannot see with the naked
  eye.

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