Answer:
No
Explanation: It is not essential. Scoring well on an AP exam requires studying, yes, but not memorization of a book. Instead, focus on understanding the concepts overall and studying key points of each unit. What book you use for that is not essential, as long as it is decently up to date.
That is false because the environment has a lot to do with it.
Answer:
by stating the speed at which people can usually read.