our changing earth. lithospheric plates evolution of landforms

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OUR CHANGING EARTH

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OUR CHANGING EARTH
LITHOSPHERIC PLATES
EVOLUTION OF LANDFORMS
TECTONIC FORCESEndogenic forces The forces that act in the interior of the earth.

Exogenic forces - The forces that act on the surface of the earth .
CAUSESEndogenic forces produce slow and sudden movements .

Sudden changes cause EARTHQUAKES & VOLCANOES
VOLCANOA VENT OR OPENING IN THE EARTHS CRUST THROUGH WHICH MOLTEN MATERIALS ERUPTS SUDDENLY.
EARTHQUAKEWhen the Lithospheric plates move ,the surface of the earth vibrates.These vibrations are called EARTHQUAKES.
Earthquake hits Bhuj26th January 2001
EARTHQUAKE PREPAREDNESS
SEISMOGRAPH
WEATHERING & EROSIONWeathering Breaking up of the rocks on the earths surface.

Erosion - is the wearing away of the landscape by different agents like water, wind ,ice .
WORK OF A RIVER
FLOOD PLAINS
DELTA
WORK OF SEA WAVES
WORK OF ICE
WORK OF WIND

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