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Vertical forces can break up layers of rock into fault blocks, which then move vertically...
Seawater, as an external force, plays an important role in shaping coastlines.
Cyclones are large areas of circulating air with clouds and precipitation being formed in...
Lightning is a sudden electrostatic discharge accompanied by a sound known as thunder.
Waterfalls form where the river flows over a steep precipice in its course.
The oxygen cycle describes the movement of oxygen within its three main reservoirs.
Karst formations include dolines and dripstones.
The surface of the Earth has been formed into its present state both by external and internal...