Elias howe invented which of the following?
a. the mechanical reaper
b. the sewing machine
c. a method for vulcanizing rubber
d. the steel plow

One of the main things that tobacco did for jamestown was to?

Where did people have to work with great organization to be successful at farming? a. on the yellow river basin c. on the hangzhou bay b. on the yangzi river basin d. on the hubei basin

Answer which of the following was a major outcome of european imperialism in africa after the industrial revolution? o a. the area around the suez canal experienced decades of military conflict. b. africans in the belgian congo suffered forced labor and oppression. o c. the discovery of rich natural resources led to african economic prosperity. o d. europeans brought disease to central africa, killing thousands.