The answer is the the empire was conquered and exploited by Pizarro and other Europeans.
Its number one I got it right on my test.
Answer:
first and last one is the answer
New aqueducts brought fresh water from hundreds of miles away and Huge tunnels were built for sewer lines.
The Byzantine Empire had kept the cultures safe for nearly a thousand years.
Two of the most common problems that many European colonists faced were 1) a lack of food due mostly to improper knowledge of farming, and 2) hostile native populations.