What is the primary purpose of a local government?

to tax its citizens
to organize its armed forces
to serve and protect citizens
to administer the state government

The rise of advertising in the 1920s. i am good with seeing how advertisements shape the roaring twenties and how it developed a new way of life through modern days. but i am not sure what the details of advertising in the 1920s were. if possible can you send me links (preferrably credential links) to sources that maybe show like the first company to start advertising through the radio, how advertising benefits (statistics graphs), etc.

Which of these constitutional amendments made all people born or naturalized in the united states into citizens of the united states ?

In 1991, which of the following split into 15 independent republics when its communist government lost power? a) china b) belarus c) germany d) soviet union