What is the function of the placenta? A. To provide the developing fetus with food, water, and oxygen OB. To protect the developing fetus OC. To help the developing fetus communicate with the mother OD. To hold the developing fetus in place

social status of early civilizations was based primarily on economic power.- true ( first choice)

shang dynasty

western zhou (ca. 1046-771 bce)

eastern zhou (ca. 771-256 bce)

music always has an important role in culture and societies, infact for example rock’n roll music has conditioned different areas of pop culture above all in the 60s. in the modern american society its role is different.

unfortunately many think about how some unfortunate events happened to the columbine high school shootings can be related to rock music just because the teenagers involved listened to this kind of music.

i think that we can valorize the change to take refuge in this genre of music to keep on in everyday life, teenagers are comfortable when they can listen to a song about a specific problem. realizing that someone else is living your personal drama too can them to feel less lonely nowadays.

explanation:

the addition to geographic boundaries that might have  kept the people of the huang river civilization from traveling to far distance region is that they had learned about the other river valley civilizations but feared contact would bring invasion.

hope this .

plz give me brainliest!