Ключевые слова: background, ball, bio, bokeh, bubble, care, clear, close up, concept, conservation, crystal, design, development, distortion, earth, earth day, eco, ecology, environment, environmental, environmental conservation, forest, glass, global, grass, green, life, moss, nature, peace, planet, protect, recycling, reflection, refraction, refresh, relax, resource, responsibility, round, save, space, sphere, spiritual, sunlight, sunshine, symbol, transparent, travel, world,