Ключевые слова: abstract, background, ball, beautiful, bright, business, care, childhood, circular, color, concept, conceptual, conservation, design, earth, eco, ecology, economy, environment, environmental, fingers, geography, global, globe, grass, green, hand, harmony, hold, human, life, linear, map, nature, paper, peace, people, planet, planet earth, playful, protect, protection, round, save, science, space, sphere, symbol, water, world,