John just ate a big dinner. when john is offered a piece of his favorite pie he declines. the decrease in the reinforcing value of pie for john is an example of: a. reinforcement b. deprivation c. extinction d. satiation

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

When does a metropolitan area become a megalopolis?

Historical vs today's presidents (compare)