Just 3 reasons? ok then, they were unprepared for the desert climate, they had a poor reputation with the locals, and they were considered "devils" so no one wanted anything to do with them.
Answer:
Farming allowed people to control how much food was growing/being harvested
Answer:
undercover ch.at yay ._.
but imma be smart just to tell u the answer 7w7
da answer is.....give me a sec
ps. I AM NOT NOSY
C would be the correct answer considering most accurate out of all technology and growth that was produced there
Answer:
Probably to have better ability to travel one place to another.