What happened to the underground railroad after the fugitive slave act was passed

It became less effective. It grew and became busier. It was shut down by slave hunters.

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.

protected civil liberties and outlawed slavery in the new territories.