Citizen participation has lessened in cuba as a result of fidel castro's installation of which type of government?

Need answers to all questions for this paper

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.

How did the writing of the constitution demonstrate the political process? definition of political process by merriam webster: the process of the formulation and administration of public policy usually by interaction between social groups and political institutions or between political leadership and public opinion.