Student 1 said, Magnetic force and electric charges are similar, because opposites attract and like repel. Student 2 said, Magnetism and electricity are similar because they both have a force field extending out from them so they don't have to touch to work.

The answer would be d. hope this :

This  kingdom  is  made  up of species that  do  not really easily fit into other kingdoms such as the plant, animal,and  fungi  kingdom. some protists, such as the paramecium  and  amoeba, feed  on  other  organisms  while others such as algae are able to  make their own food  through the process of photosynthesis.

Gravity, from the center of mass of the box, extending downward normal force, from the floor under the box, extending upward, equal to gravity push force, acting at a point on the box, extending in the direction of motion friction, acting at any point on the box directly opposite the push, extending directly opposite to the motion