If this is true or false, the answer is true: you definitely need a clear point of view and supporting evidence to have a well rounded argument
He wanted to show what happens when a country is caught unaware by an enemy. (for apex)
The correct answer is becoming an astronomy researcher
For starters, it is the only appositive phrase. It is also non-essential because the sentence conveys full meaning even if it was removed.
Peripeteia is also known as the turning point, the place in which the tragic protagonist's fortune changes from good to bad.