Ключевые слова: 22, anniversary, april, background, banner, card, care, celebration, clean, concept, conceptual, conservation, craft, day, earth, eco, ecological, ecology, energy, environment, environmental, environmentally, friendly, global, globe, go, green, happy, holiday, international, leaf, natural, nature, planet, poster, power, protect, protection, recycle, recycled, reduce, responsibility, reuse, save, sign, space, symbol, text, tree, world,