What would the owner of a lemonade stand be doing if he or she bought lemons directly from the farmer

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?

Many members of the civilized tribes farmed

Music the height of a wave or the amount of the wave carries is the amplitude. a.air b.nodes c.speed d.energy