OUR CHANGING EARTH

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OUR CHANGING EARTH
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LITHOSPHERIC PLATES
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EVOLUTION OF LANDFORMS
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TECTONIC FORCES

• Endogenic forces The forces that act in the
  interior of the earth.
• Exogenic forces - The forces that act on the
  surface of the earth .

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CAUSES

• Endogenic forces produce slow and sudden
  movements .
• Sudden changes cause EARTHQUAKES VOLCANOES

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VOLCANO

• A VENT OR OPENING IN THE EARTHS CRUST THROUGH
  WHICH MOLTEN MATERIALS ERUPTS SUDDENLY.

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EARTHQUAKE

• When the Lithospheric plates move ,the surface of
  the earth vibrates.
• These vibrations are called EARTHQUAKES.

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Earthquake hits Bhuj

• 26th January 2001

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EARTHQUAKE PREPAREDNESS
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SEISMOGRAPH
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WEATHERING EROSION

• Weathering Breaking up of the rocks on the
  earths surface.
• Erosion - is the wearing away of the landscape
  by different agents like water,
• wind ,ice .

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WORK OF A RIVER
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FLOOD PLAINS
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DELTA
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WORK OF SEA WAVES
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WORK OF ICE
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WORK OF WIND
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