How do you know if a government is a democracy?

Why did the actions taken at the congress of vienna inspire the nationalists movement across europe in the 1800s. a)the congress of vienna prevented former leaders from regaining control of their countries creating chaos. b)the congress of vienna imposed british rule over the entire continent of europe, upsetting monarchs. c) the congress of vienna established democracies across europe that had little power or organization. d) the congress of vienna put the absolute monarchs back in power upsetting commoners

Who was the better president between richard nixon and john adams in terms of accomplishments ?

Reasoning based on the ease with which we can bring something to mind involves the use of the heuristic