Ключевые слова: aqua, awareness, bio, biology, campaign, care, city, concept, conservation, craft, creative, cut, cutout, design, drop, earth, eco, ecologic, ecological, ecology, energy, environment, environmental, fresh, friendly, globe, green, idea, march, natural, nature, paper, planet, poster, protection, reduce, responsibility, reuse, save, tree, turbine, water day, wind, world,