Step-by-step explanation:
Ans 1. = The one society in which many different groups and political parties are allowed to exist.
Ans 2. = A community within a larger organization with a shared interest in advancing a specific area of knowledge, learning or technology .
Ans 3. = Influencing public policy is just one purpose of an interest group. To accomplish this, interest groups help to educate the general public, as well as policy makers, on their issues.
Even , They also look for ways to fund their causes.