Effects that improvements in transportation had on the united states economy in the 1800s?

Increase in immigration, trade, and commerce travel.

puritans hope this

the correct answer is d

a conference committee is a group of congress representatives appointed by the senate and the house to reach an agreement over a bill that had different versions in each chamber. this is due to the fact that, to pass a law. both the house and the senate must agree on the exact same content and wording of the bill to present it to the president.