When did sociologist begin to study social classes in the United States???

Want brainliest + free points? answer this question correctly and i got you. in rural areas, be aware of sudden hazards, particularly near a. wide turns or working farms b. tight turns or working farms c. long stretches of open road d. abandoned farms

Explain the popular saying "we are made of stardust. how are we made of stardust? use scientific vocab.

During the decline of the harappan civilization, which group came to power in the indus valley