Prior to exploration, which applied to enslaved persons in africa? check all that apply. they were an investment for their owners. they could be freed by manumission. they were a sign of their wealth. they worked in agriculture. they were foreign criminals

How did the scientific revolution of the seventeenth century lead to the industrial revolution

How did the completion of the transcontinental railroad change the lives of american citizens? a-it increased the wealth of all americans and enabled them to travel more.b-it made cross-country travel too expensive for ordinary americans.c-it decreased the safety of americans who moved to settle the plains.d-it shortened travel time between the east and west for all americans.

What did the marshall plan do ? apex a.send aid to countries in europe b.sent atomic weapons to asia c.sent more ships to the pacific d.sent aid to the soviet union answer ; is a