What is the cause of the egyptian custom of putting objects in tombs

Egyptians thought that putting objects into the tombs of people would help them (and would be used by them) in the afterlife. This is the main reason why many individualized and personalized items could/can be found in tombs of Egyptian pharaohs and other important figures. 

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 !