Ключевые слова: algae, biology, close, color, contaminated, danger, deficiency, detail, dirt, dirty, drainage, e, ecology, environment, environmental, flora, green, green scum, green water, lake, marsh, mud, natural, nature, ocean, organism, oxygen, pattern, plant, polluted, pollution, pond, river, scum, slime, surface, swamp, water, water blooming, wet,