The World of the seas

Seas and oceans cover almost three-quarters of the Earth’s surface. 97.5% of the total hydrosphere is saltwater.

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Limestone

It is a sedimentary rock with high calcium carbonate content.

Exogenic forces

The surface of the Earth has been formed into its present state both by external and internal...

The weather forecast

The weather can be forecast with different meteorological instruments.

Continental drift

In the past, a number of geologists tried to explain why the outlines of continents seem to fit...

Taiga climate

Among the climate zones with the greatest extremes, the taiga only formed in the Northern...

Layers of the ocean

Physical properties, as well as the flora and fauna of the ocean change with depth.

Underground waters

Groundwater and aquifers are types of underground waters.

The development of lakes

Standing bodies of water can form in depressions on the surface by both endogenic and...

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