Identify a situation in which friction works against you.

Friction tends to oppose any relative motion between objects, acting at the surfaces in contact. If there is relative motion, the frictional force is the kinetic force of friction. If there is no relative motion, the frictional force is the static force of friction.

Explanation:

the earth is thought to have been formed about 4.6 billion years ago by collisions from a cloud of hydrogen, helium, rock, ice and other materials. these were pulled together by gravity to form objects in and around earth like- asteroids and small early planets called planetesimals.

so, the best possible answer to this question will be option d- to harden materials to form different parts of earth’s layers