Answer:
Long droughts
Explanation:
The climate in Mesopotamia is semiarid, which means hot summers, and only a few months of rain. Civilization only thrives there because of floods of the rivers Tigris and Euphrates. The floods occurred only in April and May, so they had to prepare themselves for the long droughts. That's why they build canals, and what helps them settle there.
Answer:
Its the long droughts
Explanation:
Trust me it works, it really does.
