The building of roads and canals in the united state in the early 19th century resulted in-

The building of roads and canals in the United States in the early 19th century resulted in stronger economic ties between the East and the West.

Explanation:

The phenomenon that many refer to as the 'transportation revolution' is deemed to have taken place in the early 19th century. The Louisiana Purchase that happened in 1803 doubled the size of the nation and the War of 1812 surfaced the need for enhanced transportation and communication facilities in the interiors of the country.

In line with the same, many small and large construction projects of roads and canals were undertaken during this period which culminated in the formation of expanded networks of transportation. These networks served to connect the far east and the far west of the country and also enabled the development of healthy economic ties between the East and the West.

explanation:

actually, not all representation was acceptable based on this little piece of article, in 1776, the second continental congress issued the declaration of independence, stating their specific grievances with the british monarchy and why they were going to create a separate government. after the colonies separated from the british monarchy and formed the united states of america, they had to answer some crucial questions: 1) if not a monarchy, what type of government was the united states going to have? 2) what kind of government was going to protect the people without violating their individual liberties?

this null effect is caused by a weak manipulation and ineffective internal validity. in a scientific study, as the one dr. morimoto is trying to perfom, internal validity refers to the confidence placed in the cause-effect relationship and to how well an experiment is done and able to eliminate confounding variables.