Ключевые слова: agriculture, background, bio, care, concept, conservation, development, earth, earth day, eco, ecology, environment, environmental, environmentally, forest, forestation, friendly, gardening, global, globe, green, ground, grow, growth, hand, leaf, life, love, natural, nature, people, planet, plant, preservation, protect, protection, responsibility, save, seed, seedling, sign, social, soil, spring, sprout, sustainability, sustainable, symbol, tree, young,