Technological innovations led to an increase in the need for factory workers. Man former farm hands moved into the cities to work in factories describe the working conditions for men, women, and children in these factories (answer in 4-6 sentences)

U.S. manufacturing has seen tough times over the past few decades. Employment in that sector has dropped from around 14 percent of the U.S. workforce in 1996 to almost 8 percent now. Many jobs have shifted overseas as employers seek low-cost labor and nations with fewer safety and environmental regulations.

Explanation:

Maybe that is not 4-6 sentences but i tried :/

in 1803 the louisiana purchase took place, doubling the size of the country. by 1840 almost 7 million americans had migrated westward in hopes of securing land and being prosperous. the belief that settlers were destined to expand to the west is often referred to as manifest destiny.

explanation:

the space race was a battle to make advanced technology to get to the moon and to get a better understanding of space.