Are groups to which an individual wishes to belong, as when a young basketball player hopes to play someday in the nba or wnba

I believe the answer is Aspirational groups
Aspirational groups refer tot he group that we see as some sort of ideal group that we could use as a comparison to measure our own self-worth.
These group commonly filled with the people who are considered to be an 'expert' that excel at their own respective field.

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 !