Ключевые слова: agriculture, begin, birth, care, conservation, develop, dirt, dirty, earth, ecology, environment, ethics, evolution, farm, farmer, freedom, garden, gardening, global, grass, green, grow, growth, hand, hold, hope, human, leaf, life, natural, nature, new, organic, plant, pollution, preserve, protection, pure, raise, seed, senior, small, soil, spring, sprout, start, summer, tree, warm, young,