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.
The kingdom of Alger England
I think B because it involved friction
Answer:
<u>B) Tropical wet and dry</u>
Explanation:
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