What were challenges and opportunities that Americans faced in the years after WWI? Pls answer

Social mobility: social mobility refers to our chances of moving up or down within the american class structure. what do you think is the most important factor that leads to upward mobility? and why do you feel that way? race or ethnicity gender social class at birth hard work and education

How does specialization enable countries to trade with one another? a country can make and sell goods affordably and buy goods that it is inefficient at making. a country can make what it chooses and sell its goods to other countries. a country can decide to buy everything it needs from other countries. a country can efficiently make goods that were once difficult to make.

The passage below can be revised to make it more concise. which word is a modifier that can be eliminated because it adds no meaning? dr. madison is somewhat skeptical about stories of global warming. she has gathered scientific data in remote areas to prove her position. somewhat global scientific remote