Ключевые слова: adornment, background, blue, bright, brilliant, circle, color, concept, conservation, copy, crystal, dark, day, decoration, development, earth, ecology, environment, environmental, forest, fresh, glass, globe, grass, green, jewel, marbles, moss, nature, ocean, orb, pearl, planet, plant, protection, reflected, reflection, round, sea, shiny, space, sunlight, sustainable, transparent, trees, usa, water, world,