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Karst formations include dolines and dripstones.
Stratovolcanoes consist of layers of volcanic ash, debris and lava.
This video presents the different stages of coal formation.
This animation demonstrates different types of volcanic eruptions
Rivers play an important role in shaping the Earth's surface: they cause erosion as well...
People have always preferred to settle near rivers. What are the advantages and disadvantages of...
A hydrothermal vent is a fissure in the planet's surface from which geothermally heated...