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A brief history of the development of zoology.

Geographic features named in honor of the travelers .The origin of the names of geographical objects

Revision cosmetic: What we know about powder?

In which climatic zones is Australia?

Chemical elements named after scientists.

Subtropical Zone: location, features, flora and fauna

A brief history of biology.

Yenisei River: characteristics and description.

The most refractory metal.

The Great Lakes of North America.

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Kievan Rus and the Horde: problems and mutual relations
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