You are mixing one of the chemicals needed to develop photographic film. you pour a white solid into water and wait for it to dissolve. the process is taking a long time, how might you make it go faster? a. put the water into the refrigerator b. warm the water on a heater c. add more of the solid d. reduce the air pressure

The correct answer for this problem is c

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.

It equals just about 6,300 km per hour each day an week