Plateaus and Plains (ICSE 9)

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Plateaus and their classification

Plateau is defined as an area of high ground, 500 feet above the ground level. These uplands have a steep slope on one side.
Intermontane plateaus are those which are surrounded by hills and mountains on all sides. Plateaus surrounded by mountain ranges on one side and plains on the other side are called Piedmont Plateaus. Volcanic Plateaus are derived from lava flows from volcanic eruptions. Uplifted plateaus are formed during a volcanic activity. 

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Explain Plains

A Plain is defined as an extensive area of lowland with a level or gently undulating surface. Three types of plains can be distinguished- Structural plains, Erosional Plains and Depositional plains.