Waterfall

Waterfalls form where the river flows over a steep precipice in its course.

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Cloud formation, types of clouds

Evaporating surface water forms clouds of various shapes from which water falls back to the...

Underground waters

Groundwater and aquifers are types of underground waters.

Loess

It is a sedimentary rock made up of loosely structured, rough grains of rock.

Folding (basic)

Lateral compressive forces cause rocks to form folds. This is how fold mountains are formed.

Faulting (intermediate)

Vertical forces can break up layers of rock into fault blocks, which then move vertically along...

Karst region (basic)

Karst formations include dolines and dripstones.

Fjord

A fjord is a long, narrow inlet with steep sides, created in a valley carved by glacial activity.

Carbon cycle

Carbon is bound in organic substances during photosynthesis, while during breathing, it is...

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