Ключевые слова: background, bottles, chemical, clean, dam, danger, dead, dirty, disaster, ecology, ecosystem, environment, factory, fish, floating, forest, garbage, green, hiking, hill, hydroelectric, journey, lake, landscape, mountain, natural, nature, park, plastic, polluted, pollution, problem, purification, recycling, reflection, reservoir, resort, river, romania, rubbish, solution, station, success, summer, toxic, travel, tree, village, waste, water,