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THE EARTH´S SPHERE PowerPoint Presentation
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THE EARTH´S SPHERE - PowerPoint PPT Presentation


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THE EARTH´S SPHERE. ATMOSPHERE. The Atmosphere surrounds the Earth and is the outer sphere. It is formed by a mixture of gases , called air. HYDROSPHERE. The Hydrosphere is all the water on the Earth, and covers three quarters of our planet. GEOSPHERE.

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Presentation Transcript
atmosphere
ATMOSPHERE
  • The Atmosphere surrounds the Earth and is the outer sphere. It is formed by a mixture of gases , called air
hydrosphere
HYDROSPHERE
  • The Hydrosphere is all the water on the Earth, and covers three quarters of our planet.
geosphere
GEOSPHERE
  • c. The geosphere is the solid sphere. It is formed by mineral rocks and metals. It has three layers:

The curst. It is the outer layer. It is formed by a mixture of rock with lower density.

      • The mantle. It is the intermediate layer. It is formed by rock with medium density.
  • .
  • Core. It is a mixture of iron and nickel, materials with the highest density. The temperature is very high.
biosphere
BIOSPHERE
  • The biosphere is the living beings which inhabit the Earth and live in the three other layers.
natural resources
NATURAL RESOURCES
  • The natural resources are matter or energy taken from the layers of Earth. These resources can be renewable or non-renewable:
  • • Renewable resource. Are replenished by natural processes
    • Inexhaustible renewable resources
    • Renewable resources that can regenerate
  • • Non- renewable resource. Their consumption rate is higher than their regeneration rate.