It affected their social lives, and there was very little trade between the two regions (the only ones around.) They also needed many people. They developed irrigation and drainage systems which caused many people to work.
The answer is A! Physical map, as it shows the height of things that are above or below sea level.
Hope this helps!! :(
Executive agreements? OR An autocrativacry?
It would be the Delegated powers.
I hope this helps.