What effect do mass and distance have on the force of gravity?

There is a direct relationship between mass but not with that of distance, the relationships can be obtained from the formula for universal gravitation which is

FG = GMm/r^2.

Here the mass has a direct linear relationship whereas the radius has an inverse square relationship.

Nps pollution is caused by rainfall or snowmelt moving over and through the ground. nonpoint source pollution can include: excess fertilizers, herbicides and insecticides from agricultural lands and residential areas. oil, grease and toxic chemicals from urban runoff and energy production

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