A major difference between aggregates and social groups is that people in aggregates: a.
share a similar characteristic, such as education level, age, race, or gender.
b.
never form secondary groups.
c.
share a common purpose but generally do not interact with one another.
d.
have a feeling of interdependence.

Which sentence best represents the thesis of this article? a they challenge us to consider whether we can trust what we are seeing. b optical illusions may seem mysterious, but they are not unexplainable. c through science, we can learn how optical illusions work. d let’s take a look at three common optical illusions and explore the science behind each one.

What is polytheism? the belief in one god. the belief in more than one god. the belief that there is no god.

Drugs have a high potential for abuse. there is no routine therapeutic use for these drugs and they are not available for regular use. they may be obtained for “investigational use only” by applying to the u.s. drug enforcement agency. examples include heroin and lsd. which scheduled drug is this?