What was the biggest impact of Chernobyl

Which is the best description of a scorched earth policy? the burning of fields in preparation for planting the destruction of an opponent’s resources the mobilization of a nation’s resources in war the effort to switch from farming to manufacturing

1) this was the intellectual, philosophical, and artistic movement that began in italy in the 14th century.

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.