PLAINS|FORMATION||ITS IMPORTANCE||LANDFORMS & PEOPLE||ENRICH GEOGRAPHY

Описание: PLATEAUS AND ITS IMPORTANCE. Let us know about another major landform depending on the elevation and slope.Let us know about the playeaus. Let us know about its types, formation. Let us know about the importance of plateaus.

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LANDFORMS OF THE EARTH
A landform is a natural or artificial feature of the solid surface of the Earth or other planetary body. Landforms together make up a given terrain, and their arrangement in the landscape is known as topography. Landforms include hills, mountains, plateaus, canyons, and valleys, as well as shoreline features such as bays, peninsulas, and seas including submerged features such as mid-ocean ridges, volcanoes, and the great ocean basins..

***MAJOR LANDFORMS ***
Depending on elevation and slope three major landforms are-
• Mountains
• Plateaus
• Plains

***PLAINS***
A plain is a broad area of relatively flat land. Plains are one of the major landforms, or types of land, on Earth. They cover more than one-third of the world’s land area. Plains exist on every continent.

The movement of rivers sometimes forms plains. Many rivers run through valleys. As rivers move from side to side, they gradually erode the valley, creating broad plains.

As a river floods, it overflows its bank. The flood carries mud, sand, and other sediment out over the land. After the water withdraws, the sediment remains. If a river floods repeatedly, over time this sediment will build up into a flood plain. Flood plains are often rich in nutrients and create fertile farmland. The flood plain surrounding Africa’s Nile River has helped Egyptian civilization thrive for thousands of years.

Alluvial plains form at the base of mountains. Water carrying sediment flows downhill until it hits flat land. There, it spreads out, depositing the sediment in the shape of a fan. The Huang He River in China has created an alluvial plain that covers about 409,500 square kilometers (158,000 square miles). Because much of the sediment the Huang He carries is yellowish in color, it is also called the Yellow River.

Many rivers deposit their sediment in the ocean. As the sediment builds up, it might eventually rise above sea level, forming a coastal plain. 

Plains are generally densely populated because rivers are a perennial source of water, thus people tend to live in areas where water is available. Land near the river is very fertile and good for agriculture, making it a great source of income.
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#MAJOR LANDFORMS OF THE EARTH
PLAINS
FORMATION OF PLAINS
#ALLUVIUM
DENSELY POPULATED REGIONS
#USES OF PLAINS
#MAJOR LANDFORMS
#CLASS 6
#GEOGRAPHY