few lines mountains landform
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MOUNTAINS :- Mountains are large landforms that rise high above surrounding terrain and usually form sharp peaks. Most mountains are formed by the movement of Earth's tectonic plates, called tectonic activity. Tectonic plates are massive slabs of rock that are present under continents and oceans. When two tectonic plates are pushed together for a long period of time, shards of crust are pushed upward, forming mountain ranges that span the distance of the line between the two tectonic plates. Scientists estimate that this process can take up to 100 million years.
Volcanic activity can also create mountains when magma from beneath Earth's crust erupts onto the surface. Over time, as the magma continues to erupt and cool over and over again, a large cone of rock forms. These kinds of mountains are usually called volcanoes and are given qualifiers that describe current activity, such as dormant or extinct.