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Soil contaminants | Soil Science Society of America
Of course, most soil is perfectly safe for play, gardening, and recreation, but it's best to be safe. Common contaminants in urban soils include pesticides, petroleum products, radon, asbestos, lead, chromated copper arsenate and creosote. In urban areas, soil contamination is largely caused by human activities.
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Эвтектика — Википедия
Эвте́ктика (греч. εύτηκτος — легкоплавкий) — термин, используемый либо: 1. Для обозначения жидкой гомогенной системы (раствора, расплава) с эвтектическим составом, то есть с составом данной смеси в эвтектической точке (жидкая эвтектика) ;2. Либо для обозначения твёрдой гетерогенной системы (например, гетерогенного сплава) — продукта затвердевания жи…
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