What was the diffrence between what country residents and town residents wanted

Toward the end of the roman empire, what caused a decrease in the use of coined money tell me now

People with high cq motivation enjoy interacting with people from other cultures and are likely to deal with the stress of living in another culture. tend to negotiate more aggressively during negotiations. build cooperation by reciprocating information sharing during negotiations. are very good at leveraging the s& o model which they do by leveraging equivalent offers.

Radiation was first detected by a ?