What did samuel slater do to start the industrial revolution in the united states?

a.
he memorized the plans for building machines like they had done in britain and started the first american spinning mill.

b.
he invented the cotton gin, which removed the seeds from cotton fibers much faster than workers could, and allowed the cotton to be ready for market in less time.

c.
he developed the steam-powered engine which allowed mills to be built anywhere and improved transportation on the rivers.

d.
he developed the locomotive, the tom thumb, which made it easier and cheaper to move raw materials and finished goods to all regions of the country.

the hollywood film industry of 1950 was threatened on several different fronts. television broadcasting was rapidly becoming the dominant entertainment medium in the united states. the paramount anti-trust consent decree requiring separate ownership for production companies and theater chains had gone into effect on 1 january 1950. large numbers of young men and women were marrying, having children, and moving to the suburbs, which affected the viability of downtown first-run movie theaters. foreign revenues were endangered by protectionist tactics including quota systems, high taxes, and blocked funds. finally, the morality and patriotism of hollywood films and filmmakers were under attack from government, religious, and citizens' groups.

explanation: