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.

answer; deviation iq; //(a)

i have to go with a for this one

the answer is: c. c.it limited the president’s power to start wars.

the war powers resolution of 1973 requires the president to notify the congress whenever the president wanted to order a military operation to other countries within 48 hours. if after being reviewed the congress disagree with the proposal, that the president will be banned from ordering the operation.

a factory opens that mass-produces light bulbs.

explanation:

not sure if that's an answer to your questions but this is an example! : )