Religious and ethnical problems.
It was one of the largest empires of the world with many different ethnicities. The problem was to unite people under one rule.
Another problem was communication. It was hard to transfer knowledge and news to all parts of the empire because it was too large.
Answer:
Pollution and Population are correct
C pass through points W and X
(please could i have best answer i'm trying to rank up?)
Answer:
thanks for free points have a good day
