1. C: she would not go to the choral concert.
Her not going to the concert caused her to fail the course and not be allowed to re-take it. The F and the inability to retake the course would be the effect.
2. False
Many events can have more than one cause and more than one effect. Effects, especially, can be high in number because one cause can set off a chain of events that affect a lot of different people.
What would happen to long-term health if everyone had access to clean water? Is a good rhetorical question because you don't need to answer it, just maybe think about it.
Latrine is a toilet or outhouse.
A or B because you dont want to spend all of your time prewriting