In front of which building in washington, d. c., did dr. king deliver his "i have a dream" speech?

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?

Based on the text why did another christian church appeal to european princes?

What kind of geography deals with people and how they affect the world ?