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A video on the Amazon river and its drainage basin.
Cyclones are large areas of circulating air with clouds and precipitation being formed in...
The Wallace line divides the fauna of Asia and Australia.
Mercury, Venus, Earth and Mars may have they formed in much the same way, but only the Earth is...
A hydrothermal vent is a fissure in the planet's surface through which geothermally...
A glacier is a large body of ice in constant, slow motion down a hillside.
Soil is the loose, uppermost, fertile layer of the Earth’s crust.
Water is one of our key natural resources; we must protect it vigorously.