River valleys physical characteristics are found in Mesopotamia.
- The term is taken from the Greek language; 'Meso' means land or between and 'Potomia' rivers.
- Mesopotamia is situated in the river valleys between the Tigris and Euphrates rivers.
- Rivers valleys brought fertile land along with minerals in it for crops to grow.
Therefore we can conclude that Mesopotamia had river valleys that assisted people live in the region and establish early civilization.
Thus option B. is correct answer.
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