In a reverse reaction, products are formed from reactants and reactants are formed from products. when they yield the same amount,
chemical equilibrium is reached
it is called the law of mass action
activation energy is released

there's no big difference.

explanation:

the only little different between a rabbit and bunny is just that bunnies are much smaller than rabbits. bunnies are basically baby rabbits.

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