Those forms of entertainment were very popular in the 1930's because in the 1930's thats when the Great Depression was still going on so all of the unemployed people during the Great Depression wanted to at least have some fun without having to spend a whole lot of money.
I believe the correct answer for the blank is: Generalizing fear.
I hope my answer benefited you in some way! c:
"At first the Romans pretended to let Greece be independent, but by 146 BC the Romans destroyed Corinth and made Greece into a province of the Roman Empire Greece did well under Roman rule, even though some Greeks- especially the rich ones who had been more important before - were not very happy about it"
The scientific method is an unbiased technique to discover the natural world, draw inferences from it, and forecast the outcome of certain events, progressions, or changes. Scientists use it to speak about environmental problems because this method was established to enable the most accurate and impassionate evaluation of the situation.