Ключевые слова: background, bio, biology, care, climate, community, concept, conservation, crystal, day, earth, eco, ecological, ecology, ecosystem, environment, environmental, friendly, geography, glass, global, globe, green, growth, hand, hold, holding, human, idea, leaf, life, map, meadow, natural, nature, peace, planet, plant, protect, protection, recycle, recycling, reflection, safe, save, sphere, sustainable, tree, world,