Ключевые слова: aerial view, agua, bangkok, biology, black color, circle, clean, cleaning, color image, dirty, ecology, ecosystem, environment, environmental, factory, full, garbage, green color, groundwater, horizontal, industry, liquid, medicine, motion, nature, no people, order, overflowing, plant, pollution, purification, purity, recycle, recycling, rock formation, separation, sewage, slimy, social issues, station, supply, system, tank, technology, treatment, unhygienic, warehouse, waste, water,