What were the affects of the industrial revolution on american cities?
a.
no sewage systems
c.
no labor laws
b.
unsantitary living conditions
d.
all of the above

The correct answer is D.

...

-There were no sewage/draining systems so the gravel often flooded with trash, food, etc.

-The living conditions were poor because people threw trash on the floor and did not clean very well.

-Kids would work 12 hours a day/6days a week (this refers to "no labor laws"

Knowing all this information this leads us to get the answer D.

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punish germany and keep it weak,

the answer is the government.