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The Earth as a System. Earth’s Spheres. Earth’s Spheres. Atmosphere Hydrosphere Lithosphere/ Geosphere Biosphere Cryosphere. Atmosphere. The gaseous sphere that covers the Earth. Consists of a mixture of gases composed primarily of nitrogen, oxygen, carbon dioxide, and water vapor.

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the earth as a system

The Earth as a System

Earth’s Spheres

earth s spheres
Earth’s Spheres
  • Atmosphere
  • Hydrosphere
  • Lithosphere/ Geosphere
  • Biosphere
  • Cryosphere
atmosphere
Atmosphere
  • The gaseous sphere that covers the Earth.
  • Consists of a mixture of gases composed primarily of nitrogen, oxygen, carbon dioxide, and water vapor.
hydrosphere
Hydrosphere
  • All of the water on Earth
  • 71% of the earth is covered by water and only 29% is terra firma
lithosphere
Lithosphere
  • The Earth\'s solid surface, often called the crust of the earth. It includes continental and oceanic crust as well as the various layers of the Earth\'s interior.
biosphere
Biosphere
  • All life on earth, including man, and all organisms.
  • The life zone on our planet distinguishes our planet from the others in the solar system.
cryosphere
Cryosphere
  • The portion of the Earth\'s surface where water is in a solid form
  • Snow or ice: includes glaciers, ice shelves, snow, icebergs, and arctic climatology
interconnected spheres
Interconnected Spheres
  • Spheres are closely connected
  • Changes are often chain reactions
  • A change in one sphere results in changes in others - called an event
    • Forest fire destroys plants in an area
  • Interactions between spheres
    • No plants => erosion
    • Soil in water => increased turbidity
    • Turbidity => impacts water plants/animals
event sphere
Event <=> Sphere
  • Causes & Effects
  • Interactions
  • Event <=>Sphere
  • Sphere<=>Sphere
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