PLEASE PLEASE PLEASE HELP Which is NOT one of the four fundamental forces in the universe?

Electromagnetism

Strong

Gravity

Mass

Mass

Explanation:

From walking on the street, to launching a rocket into space, to sticking a magnet on your refrigerator, physical forces are acting all around us. But all the forces that we experience every day (and many that we don't realize we experience every day) can be whittled down to just four fundamental forces:

Gravity.

The weak force.

Electromagnetism.

The strong force.

These are called the four fundamental forces of nature, and they govern everything that happens in the universe.

i'm thinking (a) to keep sand in place; ////////////

explanation: a sand fence or sandbreak, like a snow fence, is used to force windblown, drifting sand to accumulate in a desired place. sand fences are employed to control erosion, sand dune stabilization, keep sand off roadways, and to recruit new material in desert areas.