What are some ways that the industrial revolution changed the world?

the steam engine, firepower,etc.

Explanation:

The industrial revolution brought many changes to warfare and the societies that waged them. The steam engine was the force that drove the industrial revolution. ... Industry's vast increase in the scale of death forever altered the way wars were fought. Increased firepower led to scattered troops looking for cover.

i think it would be a

the fact that could also be added to column b is that during world war ii, specifically between the years 1941 and 1945, japan expanded its territory towards the indonesian territory in what was known later as part of the "pacific war". in that time, japan could conquer the philipines, singapore,   borneo, central java, malang, cebu, sumatra and various other islands of the area, therefore expanding its territory for a brief period of time.