Does social media reach the masses or does it reach specific consumers, those interested in the product service?

According to the video, two of the ways government can play a role in the economy is by protecting property rights and to

The belmont principle of beneficence requires that: a. subjects derive individual benefit from study participation.b. potential benefits justify the risks of harm.c. the study makes a significant contribution to generalizable knowledge.d. risks are managed so that they are no > minimal.

What are the most populous and least areas of russia and why are some areas more heavily populated than others