Because rivers like the nile, tigris and euphrates flooded in ancient times,
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a. people lived in a constant state of fear as to when the next flood would hit.
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b. land around the river was fertile and capable of supporting farming.
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c. the concepts of cooperation and democracy were founded
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d. those places were never able to form citizens.

The correct answer is: B. land around the river was fertile and capable of supporting farming.

Flood plains often have incredibly rich soil and the "Fertile Crescent" is a classic example of the benefits of flood plains leading towards bountiful farming.

explanation:

i think it is in quadrant 4.

the five year plans were part of a command economy. there was little choice in what would be emphasized for the current 5 year period.

the answer to democracy or totalitarianism is a bit harder. in stalin's time, russia was totalitarian. now that's not entirely true. putin has moved towards at least the boundary.