Air pollution in US and Canadian cities is caused mostly by . A.
clear-cutting forests for timber
B.
releasing emissions from vehicles and industry
C.
dumping runoff from farms into rivers
D.
harvesting minerals from mines
plz hurry

When were the first 10 amendments to the constitution adopted and what was their purpose?

It is widely assumed that people need to engage in intellectual activities such as solving crossword puzzles or mathematics problems in order to maintain mental sharpness as they age. in fact, however, simply talking to other people—that is, participating in social interaction, which engages many mental and perceptual skills—suffices. evidence to this effect comes from a study showing that the more social contact people report, the better their mental skills. which of the following, if true, most seriously weakens the force of the evidence cited? (a) as people grow older, they are often advised to keep exercising their physical and mental capacities in order to maintain or improve them. (b) many medical conditions and treatments that adversely affect a person's mental sharpness also tend to increase that person's social isolation. (c) many people are proficient both in social interactions and in solving mathematical problems. (d) the study did not itself collect data but analyzed data bearing on the issue from prior studies. (e) the tasks evaluating mental sharpness for which data were compiled by the study were more akin to mathematics problems than to conversation.

1. create a hypothetical story of how a violent conflict arose between two groups. in your story, include examples of how in-group bias, out-group homogeneity, out-group derogation, and scapegoat theory lead toward violence between groups. be sure to label each term where it occurs in your story (20 points)