Overwhelming challenges made it difficult for (blank) governments to stay in power in africa.

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.

In 1990s the us closed clark air force and subic bay naval station in

Answer the questions in the image for brainliest