Why did many people move farms and move to cities in 1800?

Why have the aztec ruins in mexico city not been dug up?

How is the uk’s government is solving the air pollution problem?

When pay is made public, people evaluate how equitable their pay is in light of the pay other people are receiving. the problem in this case is that dwight and guillermo have found out that others are getting paid more than they do for the same work. what are they likely to do under these circumstances