Which of the following did not happen during the industrial revolution?
a) people began to live longer due to medical breakthroughs
b) nonindustrial nations became openly combative with industrial nations.
c) more and more people in industrial nations began to move from rural environments to urban environment.
d) many western natiojns experienced political revolutions.

B) non industrial nations become openly combative with industrial nations

Explanation:

The only war that I could find happened during this time was the war of 1812 in the US

So no nations fought over this

Plus I got it right

option d is correct. corroborated sources of historical evidence   is necessary to validate a claim about an event in history.

historians tend to use written sources, but audio and visual materials as well as artifacts are important objects that supply information to modern historians.

historical sources are usually divided into two categories: primary and secondary sources. depending on the historian's intent, some sources shift their designation. determining what type of sources toimplement, and the level of credibility and reliability of those sources, is a significant step in critical thinking for the historian.

explanation: