8. The answer is Rhode island systemThis system allows stater to improve the overall productivity by hiring more workers of his company while keeping the cost to the minimum by keeping their works in smaller fractions.
9.The answer is Robert FultonRobert fulton is an american engineer that developed the first commerical boat named steamboat of Clermonts. The first trip of this boat carries passangers from New york to Albany.
10.I believe the answer is Francis Cabot LowellFrancis cabot lowell was the first known figure to bring the industrial revolution into united states by using several machines to increase the productivity in his textile company.
11. The answer trade unionsTrade unions orgnized several efforts to create a conversation with business owners and demanded fairer salaries as the payment for their labor and lower work-hours.
12 the answer is strikeBy doing strike, the production of company will be halted and they wouldn't be able to fulfill the clients' order until they're willing to come and talk to the laborers.
13. the answer is CoalCoal was used as the main source of fuel to move trains. Since the development of railroads, more trains exist in the country, which lead to more demands for coal supply.
14. the answer is sarah g Bagley.Sarah G bagley was a worker for a caotton mill in Massachusets. Her desire to demand lower work hours derived from her desire to find more work-life balance to excel at her job and taking care of her loved ones.
15 The answer is telegraph.Before the development of telegraph, letter delivery to another cities/or states could take months. After the development of telegraph, it only took several business days.
16. The answer is industrial revolutionIndustrial revolution created both postive and negative effects for american society. Increasing production efficiency is the positive effects since it help the nation improve its economy. But the downside for ths is the creation of pollutions and social inequality.
17. The answer is CraftpeopleEventhough craftspeople managed to excel in terms of quality and aesthetical value, they wouldn't be able to compete with machines in terms of speed and lower cost.
18. The answer is Cities.The growth in manufactoring creates a lot of job opportunities in the cities and the growth of transportaion provide the people with the option to commute between their job in the city and their homes outside.
19. The answer is StatesTo regulate trades between states, we need the power that could overulled both parties that involved in the transaction. The only one that can do this is the authority of the Federal government.