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Khanty-Mansi Autonomous District - 186 region.

What is the buffer zone of the reserve?

Oil and gas field Chayandinskoye

174 region - Chelyabinsk region and

Environmental factor - it's ... ecology and people.Types of environmental factors.Classification of environmental factors

Novosibirsk region 154.

Samara, 163 region - a city rich in history and heritage

Ferris wheel in Moscow.

Deforestation - the problem of the forest.

Environmental Police: protecting the air, land and water

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