Ключевые слова: after, background, ball, balloon, balloons, balls, care, colored, colorful, colourful, concept, conceptual, conservation, conserve, cure, deflated, earth, ecologic, ecological, ecology, environment, environmental, future, global, globe, greenhouse, health, idea, ideas, isolated, map, oxygen, ozone, planet, pollution, preserve, save, saving, surface, symbolism, topographic, topographical, toy, toys, warming, welfare, world,