Ключевые слова: ball, blue, care, child, climate, community, concept, conservation, earth, earth day, eco, ecological, ecology, education, energy, environment, environmental, global, globalization, globe, green, growth, hand, hold, holding, hope, human, international, kid, life, map, peace, planet, preserve, protect, protection, purity, recycle, responsibility, safety, save, science, security, sphere, sustainability, sustainable, symbol, universe, warming, world,