What was one technological advance used during world war i?
a. machine guns
b. atomic bombs
c. fighter jets
d. lasers

The areas with the highest population density in europe are most likely to be

Which religions are most commonly practiced in south asia

Psychologists studying infant memory want to determine at what age babies can remember specific events. an experimenter uses several puppets to demonstrate a series of actions while the infant watches. after a delay, the experimenter records how many of the actions the child imitates when playing with the puppets. what is the dependent variable?