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When were criminals first used to create a system to catch other criminals

What are the most populous and least populous areas of russia? and why are some areas more heavily populated than others?

Identify a true statement about media multiplexity.the choice of medium is primarily important in determining the strength of relationships.weak ties are uncomplicated and do not need many channels to sustain them.tie strength plays an insignificant role in determining the number of media employed by pairs.strong ties require less media than weak ties to orchestrate their varied and interdependent connection.