What happened to the underground railroad after the fugitive slave act was passed?
a. it became less effective.
b. it grew and became busier.
c. it was shut down by slave hunters.
d. it was shut down by the federal government.

B. it grew and became busier.

just took it hah

B. It grew and became busier.

Explanation:

The Underground Railroad was a network of secret routes that allowed runaway slaves to escape from the slave states of the United States to the free states or to Canada. This system of routes reached its peak between 1850 and 1860, mostly due to the passage of the Fugitive Slave Act in 1850. With the passage of this act, the rules surrounding slaves became more stringent, and people became more desperate. The following years were the busiest years for the Underground Railroad.

(d) rivers.

explanation:

civilizations developed around rivers because their waters provided places to hunt and fish. also, as the rivers flooded, the lands around them became fertile. this allowed them to support farming. this is especially true of the nile river, which flooded the same time each year.

the second significant cause of the great migration was the desire of black southerners to escape segregation, known euphemistically as jim crow. rural african american southerners believed that segregation - and racism and prejudice against blacks - was significantly less intense in the north.