Timothy, a cashier, is given a twenty-dollar bill at his store. he is suspicious of the customer and wants to make sure the currency is real. which would be a clue that the currency is counterfeit?

He could see if its made of cotton or paper ( real money is made of cotton), or see if the serial number looks kind of odd

There is no color change on the bill. There should also be watermarks on the bill along with a security thread in all bills over a $5 note.

Americans often speak of their country as one of several large regions.  these regions are cultural units rather than governmental units --  formed by history and geography and shaped by the economics, literature and folkways that all the parts of a region share. what makes one region different from another? a region's multicultural heritage as well as distinct demographic characteristics like age and occupation make regions different and special. within several regions, language is used differently and there are strong dialects. there are also differences in outlook and attitude based on geography.