Compare and contrast deposition caused by wind with deposition caused by moving water.

When wind slows down it deposits the sediment it is carrying. this often happens when wind moves around an obstacle, e.g. a tree or a rock. wind deposits the largest particles first, forming different deposits. sand dunes are formed when wind deposits sand forming small hills of sand. loess are formed when wind drops fine particles of clay and silt, forming vertical cliffs.
deposition by water takes place when flowing water slows down when it reaches latter land or flows into a body of still water, and it deposits the particles it was carrying, depositing the largest particles first. deposition by streams and rivers forms features such as alluvial fans and deltas. deposition by flood waters gives rise to flood plains and natural levees.

Neptune is the eighth planet from the sun. it was the first planet to get its existence predicted by  mathematical calculations  before it was actually seen through a telescope on sept. 23, 1846. irregularities in the orbit of  uranus  led french astronomer alexis bouvard to suggest that the gravitational pull from another celestial body might be responsible. german astronomer johann galle then relied on subsequent calculations to   spot neptune via telescope. previously, astronomer galileo galilei sketched the planet, but he mistook it for a star due to its slow motion. in accordance with all the other planets seen in the sky, this new world was given a name from greek and roman mythology — neptune, the roman god of the sea.