Largest mountain range in south america, the andes, is part of a much longer chain of mountains known as?

The correct answer is: American Cordillera.

American Cordillera is the mountain range that is stretched from the north of North America to the South of South America. It includes, along Andes, Rocky Mountains and Alaska Range and the Mountains in the Baja California Peninsula.  

To solve their problems, mesopotamians used irrigation, a way of supplying water to an area of land. to irrigate their land, they dug out large storafe basins to hold water supplies these ditches brought water to the feilds. to protect their feilds from flooding, farmers built up the banks of the tigris and euphrates.hope ths !