How did the location of the arabian peninsula make it the center of trade in the region?

Define production possibility curve

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?

Economic growth in the united states does not affect the economies of other countries. select the best answer from the choices provided t f