4. How did the expansion of railroads impact the development of the United States? a.
It caused little change because of the growth of the steamboat.
b. It made prices of goods increase in order to pay for more rail lines.
C. It made shipping products to markets easier and prices decreased.
d. It caused people to move closer to manufacturing centers.

when two people answer a question, a choice will pop up at the top of each persons answer, and it will say mark as brainliest.

hope this : )

explanation:

watching over my siblings so they are safe.

    racial conflict and discrimination has existed ever since man learned to kill with rocks and bones. these conflicts arose from disputes between territory, power, wealth, religion, or simple difference. some of the most infamous racial disputes include slavery, the holocaust, and the civil rights movement.

    these listed disputes often resulted in casualties from all sides. riots, wars, imprisonment, and lynching are all commonly associated with racial conflict on severe levels.

      however, racism is an improving issue in recent decades. people are being more accepting and welcoming of diverse populations. though, the world isn't perfect and it will take much more time, if ever, until the world is rid of racism.