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OUR CHANGING EARTH. LITHOSPHERIC PLATES. EVOLUTION OF LANDFORMS. 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. CAUSES. Endogenic forces produce slow and sudden movements .
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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 .
CAUSES • Endogenic forces produce slow and sudden movements . • Sudden changes cause EARTHQUAKES & VOLCANOES
VOLCANO • A VENT OR OPENING IN THE EARTH’S CRUST THROUGH WHICH MOLTEN MATERIALS ERUPTS SUDDENLY.
EARTHQUAKE • When the Lithospheric plates move ,the surface of the earth vibrates. • These vibrations are calledEARTHQUAKES.
Earthquake hits Bhuj • 26th January 2001
WEATHERING & EROSION • Weathering – Breaking up of the rocks on the earth’s surface. • Erosion - is the wearing away of the landscape by different agents like water, wind ,ice .