What are some of the problems with using the unemployment rate as an accurate measure of overall joblessness?

Why is china building islands in the south china sea?

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

Which of the following was discovered in the piedmont region of north carolina in 1799?