Question

what do you do to the size of a pile if you remove rocks? convince it decrease it damage it

Explanation:

When rocks are removed from a pile, the quantity of rocks in the pile is reduced. The term "decrease" means to make or become smaller in size, amount, or degree. "Convince" means to persuade someone, which is not relevant here. "Damage" means to harm or impair, which is also not relevant as the question is about size reduction, not harm.

Answer:

decrease it