Which is a major cause of environmental pollution in american cities in the late 1800s?

A major cause of pollution in American in the late 1800s was Factories and coal burning due to this being an early point in life when everyone was still developing and never had a cleaner choices like we do today.

albany plan of union, 1754. the albany plan of union was a plan to place the british north american colonies under a more centralized government

nuclear fission produces the atomic bomb, a weapon of mass destruction that uses power released by the splitting of atomic nuclei the fighting in iwo jima and okinawa affected the allies' pacific strategy because truman decided to drop the atomic bomb on mainland japan.