Which statement best describes the forces shown in the picture? A. All four force are acting on the student.?
B. The force of friction is less than the applied force.
C. The normal force and the gravitational force are balanced.
D. The force of friction and the gravitational are balanced.​

the answer would be knowledge about cars!

all these collisions do one thing, and that thing is explained in the last option. when dusst, rocks and ice collide, they harden and form giant layers of rocks or hard ice.

d)   to harden materials to form different parts of earth’s layers

hope it ,

bioteacher101