Ключевые слова: arrow, ban, banner, blue, board, boy, colours, concept, conservation, daughter, denied, drink, dumping, eco, ecology, ecosystem, emblem, environment, environmental, forbidden, future, garbage, gesture, hand, holding, man, nature, no, outdoors, party, people, person, planet, plastic, pollution, poster, recycling, reusing, rubbish, save, sea, signs, social, succeed, symbol, trash, volunteer, warning, waste, young,