Биология. Тема урока: “Охрана почвы“
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![Роберт Сапольски — Биология религиозности [Vert Dider]](https://sun9-74.userapi.com/MZBGJN1YLgO5kyjOlxli2ILAupAsYRYRKcyK7Q/BBw_tVtyX5k.jpg)