A because the industrial revolution led to businesses expanding and creating more job openings in different areas
WWI was caused by many things, among them was the assassination of Franz Ferdinand leading to the Austria-Hungary empire declaring war on Serbia which dragged most of Europe into the war due to alliances. The U.S. entered the war due to Germanys war tactics and the Zimmermann note.
The answers is D, the expansion of the highway system.
The answer is true because the center of diseases always tries to spread
Control, I just put the answer in and got it right!