agents of erosion
TRANSCRIPT
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By – Riya Agarwal
9-B
Agents OF Erosion
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INTRODUCTION
AGENTS OF EROSION
WATER
ICE
WIND
WAVES
MAN-MADE
THE END
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INDEX
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What is Erosion ? THE COMBINED ACTION OF TRANSPORTATION AND BREAKING DOWN OF ROCKS IS KNOWN AS EROSION .
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Some Agents of Erosion Some common agents of Erosion are :-
Action of Running Water.Action of Moving Ice.Action of Wind.Action of Waves.Man-Made Erosion
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Agents of Erosion
INDEX
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Action of Running Water… Water is the Most Powerful Agent of
Erosion.Both Surface and Groundwater act as
Agent of Erosion.Groundwater creates underground surfaces
like-Caves.Water running on land surfaces creates land
surfaces like- Deltas.INDEX
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A Waterfall…
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Action of Moving Ice…Ice is also a Powerful Agent of Erosion.A large mass of Moving Ice is called
Glacier.When they move they carve their own
valleys .i.e. U-Shaped and V-Shaped valley.Like Rivers, Glacier break and carry away
Rock Fragments.
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A Glacier…..
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Action of Wind…Like ice and water, Wind too
erodes, transports and deposits rocks materials.
The Action of Wind is more prominent in Arid and Semi-Arid regions.
The flow of Wind can change the shape and size of Rocks.
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Mushroom Rocks…
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Action of Waves…In Coastal areas, Sea is constantly eroding
old landforms and creating new ones.The Marine Erosion is also a type of Wave
Erosion.The Marine Erosion creates landforms such
as- An Arch, A Sea Cave, etc.
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Marine Erosion…
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Man- Made ErosionMan is also responsible for erosions.Today man is the strongest agent of
erosion.We see several examples in our daily
life. Cutting mountains and big rock bodies for road making, building construction and to make farmland etc.
Mining for precious metals like gold, silver, copper etc., precious minerals like diamond, garnet etc and construction material like marble, granite etc is also done..
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Man- Made Erosion
INDEX
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