What factors allowed both urban and rural areas to flourish after the eighth century within the arab empire?

Brainliestttme : ) how are developed nations and developing nations similar? both have membership in multinational groups. both experience high death rates. both experience low infant mortality rates. both have high per capita income.

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 statement would most likely be made by an opponent of affirmative actions