What was an effect of the invention and widespread use of the air conditioner?

Northern cities saw an increase in population and an influx of Asian immigrants.

Many Americans moved to Alaska and Hawaii for economic opportunities.

The population of the South increased because the invention made the heat bearable.

Businesses began to sell more products and services online instead of in store.

answer; andrew jackson approved nullification by signing it into law,and john calhoun opposed it saying it was unconstitutional;

the church governed the society after the empire fell.   constantine took charge of rome and ended the confusion which had over religion and made christianity as the only religion and that started ruling the roman empire. he also divided the empire into two and fortified the eastern part.   he ruled the eastern part.