The difference between stage 3 and stage 4 sleep is that during stage sleep, waves occur more than 50 percent of the time. a. 3 . . delta b. 4 . . delta c. 3 . . alpha d. 4 . . alpha

Meritocracy is the belief that hard work and achievement a: can reduce a persons position in society b: can change a persons position in society for the better c: has little influence on a persons social standing d: can decrease social inequality