Ключевые слова: astronomy, axis, blue, business, class, continent, day, earth, earth axis, ecology, economy, environment, eurasia, europe, float, geography, global, globe, high speed, japan, land, map, night, north america, north pole, object, ocean, planet, rotate, rotation, round, russia, school, science, sea, shadow, society, space, sphere, sun, sunlight, terrestrial globe, turn, world,