Mountains are elevated land masses with peaks smaller than their base Bid of a height above 300 meters or 1000 fits. Similar elevations below 300 and or 1000 fits are called hills,

Mountains can be classified on the mode of their origin or formation in to four types:

(i) Folded Mountains

(ii) Block Mountains (iii) Volcanic Mountains (iv) Relict or Residual Mountains

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(i) Folded Mountains:

The mountains formed by the crumbling or tag of rocks resulting In huge wrinkles are called fold mountains. These are as a result of a earthquakes, Himalayas, Alps, Andes, etc, are the examples of folded mountains.

(ii) Block Mountains:

A mountain mass formed by the lifting up of id between faults or by the sinking of land outside the faults are called block mountain.

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(iii) Volcanic Mountains:

A volcanic mountain is a mountain formed of material that has erupted from inside the earth in the form of lava. Mt, Fujiyama in Japan, Mt. Visuvlus In Italy are examples of Volcanic mountain

(iv) Relict or Residual Mountains:

Mountains which are deeply dissected and reduced by weathering and river action are called residue mountains.

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Mountains of Chotanagpur, Vindhya, Satpura and Mahadev are the examples of Residual mountains. The youngest mountain of India is the Himalayas .