Which one of the following does not accurately describe the universal gravitational law? a. gravitational force is proportional to the product of the two masses. b. gravitational force is proportional to the square of the distance between the centers of both bodies. c. every object in the universe that has mass attracts every other object in the universe that has mass. d. the object with the smaller mass does most of the moving because the object with the larger mass has too much inertia to move any noticeable amount.

Remark
All the statements are correct except for B

B is wrong because the Force is inversely proportional to the square of the distance.

D is correct. That's what Newton saw when he watched the apple fall. The apple did all the moving.

A is correct. The formula is 
F = G*m1*m2/r^2 
If r is held constant the formula becomes
F = k * m1 * m2 where k = G/r^2

C is true as well, but it sure decreases in strength because of the distance and the smallness of G.

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.

Amplify and switch electrical power and electronic signals