Ключевые слова: activity, agriculture, background, bud, concept, conservation, day, development, dirt, dirtied, earth, ecology, environment, environmental, farm, fertilizer, finger, forest, fresh, garden, gardening, germ bud, germinating, green, growing, growth, hand, helping, land, leaf, life, light, nature, new, plant, planting, protect, sapling, seed, small, spring, tree, young,