Answer:
La situación económica del país, el descontento social y una política represiva provocaron la rebelión de las clases obreras
The United States was willing to pay more per mile for the Gadsden Purchase than for the Mexican Cession because the Gadsden Purchase gave money to the United States to build a railroad.
Haber Process, Born-Haber Cycle, Fertilizer, explosive material, chemical warfare,etc.
Historians need to make a picture of history so people can understand what happened. They use fossils and artifacts to make a picture of what that period of time was like. They interpret objects, and read scripts from that time to trust understand what was going on. This way, people can understand and learn from the past. We do not have to make history repeat itself.
PLEASE MARK BRAINLIEST THANKS!!