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Everlasting Sand - liver doctor

Boletus: description

Kola borehole.

Types of clouds: what are they?

How to protect ptarmigan nest?

Perfection line - axial symmetry in life

West Siberian Plain: nature, climate and other information

Amur River: threatened with death

Length of Russia: a variety of landscapes in the same latitudes

R136a1 - the biggest star, the revolution in modern astronomy

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