It is difficult to overridea presidential veto? why do you think is it difficult? do you think thisgood thing? why or why not?

No, there are checks and balances, such as the other two branches, such as legislative and Judical branches. They are able to over-ride if a Presidential president wants a law. This is a good thing, because none of the three branches can over power each other.

More context .

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 !