The answer to your question is 1/3
Answer is Retrograde motion
Most of the time planet moves in expected path near the ecliptic which is east to west. Some times each planet turns around and moves to the east for a period of time, then it turns around to head in west direction again making a loop or zig-zag against the star background. This is called retrograde motion. Thus retrograde motion is the change of direction of the planets in loop.
Wear<span> away</span><span> or change the appearance or texture of (something) by long exposure to the air</span>
The country of Russia, the largest country in the world, lies on a landmass that is comprised of two continents,called Eurasia (hint: Europe and Asia). This country is seperated by the Ural Mountains. Most of the population of this country lives in European Russia to the west of the mountains.