How did business change from 1840 to 1900 ? during the industrial revolution, American worker traded in farm work for the factory.

Working conditions have changed dramatically.

Explanation:

In addition to general industry conditions, product prices and worker wages have changed. In the early industrial revolution, workers worked from 12 to 16 hours a day. Conditions were catastrophic, workers were not protected in jobs, and the employer could fire a worker when he desired. Agricultural production was improved because of the mechanization that was introduced. Thus, farmers produced faster and easier to create. They marketed their products in different ways. With the advent of trade unions, the situation and conditions in which workers worked began to improve. Wages were much more concrete over time because, at the beginning of the industrial revolution, workers barely overcrowded their families.

b)

it created free trade throughout the colonial territories.

the  seven  days  battles  were  a series of seven battles over seven  days from june 25 to july 1, 1862, near richmond, virginia,  during  the american civil war. the  seven  days ended with mcclellan's army in relative safety next to the james river, having suffered almost 16,000 casualtiesduring  the retreat.