C. Warm air rises and cool air falls toward Earth’s surface.
c. United States bombing of Hiroshima and Nagasaki.
The answer is the influx of Catholics and that immigrants would take away their jobs.
In the late 19th century, many immigrants from Wester Europe came to America. On of the concerns of native-born Americans, who thought of the USA as a Protestant republic, was that the number of Catholics would increase. Further, another fear was that they would steal their jobs.
The US dropping the atomic bomb on Japan and prooving its nuclear capabilities is credited with starting the atomic age.
