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Wind, as an external force, plays an important role in shaping coastal areas and steppes.
We can observe quite interesting astronomical phenomena when the Earth, the Sun and the Moon align.
The animation presents the largest mountains, plains, rivers, lakes and deserts of the Earth.
Seas and oceans cover almost three-quarters of the Earth’s surface. 97.5% of the total...
A lightning is a sudden electrostatic discharge accompanied by a sound known as thunder.
Water covers about 71% of the Earth’s surface. But why are there two types of water on Earth,...
Groundwater and aquifers are types of underground waters.
The most important types of local winds are the sea-land breeze, the mountain-valley...