Ключевые слова: abstract, alps, background, biohazard, biological, blue, bubble, catastrophe, damage, danger, deep, desolate, devastation, dirty, earth, ecological, ecology, energy, environment, environmental, europe, floating, foam, froth, garbage, grass, industry, infection, lake, lake silvaplana, land, landscape, liquid, natural, nature, outdoors, pollute, pollution, pond, river, scenery, scum, surface, switzerland, texture, tourism, toxic, washing, water, wave,