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Groundwater and aquifers are types of underground waters.
A periodic climate pattern that occurs across the tropical Pacific Ocean every five years.
Waterfalls form where a river flows over a steep precipice in its course.
In summer, monsoon winds bring heavy rainfall from the ocean to the continent.
The oxygen cycle describes the movement of oxygen within its three main reservoirs.
The phosphorus cycle describes the movement of phosphorus through the lithosphere, hydrosphere, and biosphere.
Geothermal power stations convert energy of hot, high-pressure water found in deeper layers of the Earth into electricity.
A geyser is a spring characterised by intermittent discharge of water and steam.
The last Ice Age ended about 13 thousand years ago.
A fjord is a long, narrow inlet with steep sides, created in a valley carved by glacial activity.
The most important types of local winds are the sea-land breeze, the mountain-valley breeze as well as the downslope winds.
Cyclones are large air masses with winds spiralling inwards around a low-pressure centre, and carry clouds and precipitation.
Vertical forces can break up layers of rock into fault blocks, which then move vertically along the fracture planes.
Lateral compressive forces cause rocks to form folds. This is how fold mountains are formed.
Water on Earth is in a continuous state of change. The water cycle includes processes such as evaporation, precipitation, melting and freezing.
A glacier is a large body of ice that forms from snow, and is in constant, slow motion.
Karst formations include dolines and dripstones.
This animation demonstrates the types of soil found in Hungary.