Ключевые слова: animal, animals, background, bio, care, clean, concept, conservation, day, development, earth, earth day, earth day concept, eco, ecology, energy, environment, environmental, family, forest, fresh, friendly, global, global warming, globe, grass, green, growth, leaf, life, living, natural, nature, people, planet, plant, protect, protection, save, seedling, social, sustainability, sustainable, symbol, tree, water, wild, wildlife, wildlife reserve, world,