Richard is a five-month-old baby. his parents frequently sit by his side to cuddle him or to speak to him in loud and affectionate tones. richard seems to enjoy this attention very much and makes cooing sounds in response to his parents' warm interactions with him. richard's act of cooing to obtain parental attention is a function of the substage given by piaget.

The answer is secondary circular reactions. It normally continues from around 4 – 8 months. Now babies reprise agreeable arrangements that include stuffs in addition to whereabouts involving their own bodies. An instance of this is the baby who jiggles the rattle for the desire of hearing the sound that it makes.

answer; eliminate parking problems in cities, because a car took up only half as much space as a horse and buggy;

the answer is: c. c.it limited the president’s power to start wars.

the war powers resolution of 1973 requires the president to notify the congress whenever the president wanted to order a military operation to other countries within 48 hours. if after being reviewed the congress disagree with the proposal, that the president will be banned from ordering the operation.