Ключевые слова: affection, bark, big, biological, care, caucasian, children, concept, earth, ecology, ecosystem, emotion, environment, environmental, forest, fun, girl, green, growth, hand, happy, hug, log, man, natural, nature, organic, outdoors, outside, park, person, pine, plant, preservation, preserve, preserving, protect, protection, render, root, save, sees it, sustainability, tree, trunk, wood, young,