Answer:
OB
Explanation:
There are an abundant amount of factories in Mexico City which cause cancer and disease, as well as pollution.
Hammurabi's well-disciplined army of Foot soldiers used axes, spears, and copper or bronze daggers to divide and conquer opponents one by one.
I believe postulates are given or assumed true statements without a proof. And a theorem can be proven. You do this in geometry if I remember correctly.
Sculptures and paintings. Usually formed on the walls of shrines and temples to depict their gods, their rulers and life.