What made farmers leave their farms and migrate to the big cities to work in factories?

Hey there!

Farmers had to leave their farms to go migrate and work in big cities because when all of the new cities were being built they were taking the land away from the farmers, then on top of that, the farmers had to sell there, at so cheap they weren't making enough money to run all the equipment and support a family.

Hope this helps!

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explanation:

the right answer is the third one: turnpikes went short distances to connect markets. turnpikes, also known as toll roads, were very important for trade and transportation (of people, goods and products) in the 19th century, coinciding with the expansion towards the west. they contributed significantly to the economic development of the united states.