Factories/textile mills, were usually located by rivers, which in a literal sense, would be powered by a water turbine/wheel in the river. The Factory workers consisted mostly of children and women, especially in textile mills. The women ran the factory, and factories were powered by water turbines. I didn't know which type of answer you wanted, so you can pick from either one or take both.
Lake Erie and Lake Ontario
By rats and I'm being serious it was from the rats and the fleas biting the infected rats then the fleas jumping on people and biting them that's how it spreadesb
The answer is Market economy
Communist, immigrants, and red scare