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Fold mountains
They are formed when to tectonic plates collide head on. The immense pressure causes the earth crust to crumble and fold.
Synclines
Down folds of layers of earth
Anticlines
The up folds of layers of earth
Block mountains
These form when tectonic plates move apart and causes the earth crust to stretch or crack. They can also cause the thrust to move upwards.
Horst mountain
Upward block which have flattened summit.
Significance of mountains
× providing water and supplying food to millions of people.
× act as effective climatic barriers, protecting areas from harsh weather.
× large percentage of the world's population lives in or around mountains.