-littering; air pollution smog; air pollution smog; water pollution; water pollution; overcrowding, overpopulation; overcrowding, overpopulation; endangered. - презентация

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3 -littering; air pollution smog; air pollution smog; water pollution; water pollution; overcrowding, overpopulation; overcrowding, overpopulation; endangered species animals which are almost extinct; endangered species animals which are almost extinct; destruction of national resources; destruction of national resources; land pollution; land pollution; greenhouse effect; greenhouse effect; deforestation; deforestation; radiation; radiation; earth quakes; earth quakes; global warming; global warming; the hole in the ozone layer. the hole in the ozone layer.

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6 Mineral fertilizers Fuel burning Fuel of planes Motor transport Oil refining

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