Matching the regions to the rivers
The yellow river is river located in northern part of China, it flows through eastern asia and China. It is known as the longest river in China. The Tigris and Euphrates rivers borders the mesopotamia to a region which is known as a the fertile crescent. while the Nile river is the longest river in Africa originating from Egypt.
Hence we can conclude that matching each region with its river is as listed above.
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