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This animation demonstrates different types of soil.
The circumference of the Earth has already been calculated in ancient Egypt. The calculations...
Physical properties, as well as the flora and fauna of the ocean change with depth.
An earthquake is one of the most devastating natural phenomena.
Waves play an important role in forming the coast.
Cyclones are large areas of circulating air with clouds and precipitation being formed in...
Plate tectonics is a theory dealing with the movement of plates.
The four outer planets (Jupiter, Saturn, Neptune and Uranus) do not have solid surfaces, thus...