Ключевые слова: animal, background, chemical, concept, contaminate, contaminated, damage, danger, day, dead, death, dirty, disaster, ecological, ecology, ecosystem, environmental, fauna, fish, fishes, flat, harmful, lake, lay, litter, nature, object, outdoors, plastic, poison, poisoned, pollute, polluted, pollution, pond, problem, river, rot, rotten, rubbish, save, stones, top, toxic, tragic, trash, view, waste, water, wildlife,