What is the central idea of the first section:
When and How Often Do We Dream?
REM sleep was discovered by researchers at
the University of Chicago.
People dream every night during a sleep cycle
called REM sleep.
People dream from 5 to 20 minutes within each
sleep cycle.
Most people experience at least one hour of
REM sleep every night.

What is the problem with the following sentence: cameron, who has an extreme and unreasonable suspicion of other people and their motives, suffers from paranoia which is a psychological disorder characterized by delusions of persecution or grandeur, was absolutely sure that someone was following him even though he was absolutely alone and hadn't seen a car for miles and miles.

Public opinion polls are used in marketing

In the story “seventh grade,” victor’s and michael’s hopes and expectations about girls often cause them to a. act in embarrassing ways. b. get into trouble at school. c. struggle with friendships. d. do poorly in their classes.