What was a result of the increased demand for slave labor in the Americas and Europe during the seventeenth and eighteenth centuries? A) England and the American colonies outlawed all slave labor by 1850.
B) The price of manufactured goods decreased in Europe and the American colonies.
C) African societies outlawed the slave trade and fought against European slave traders.
D) Many African states grew wealthy by trading slaves to Europeans for tobacco, guns, and alcohol.

The answer is D

Explanation:

As demands for African slaves increased, especailly in the Americas due to the rise in cotton production, many African states became wealthy. Usually, the slaves that Africans sold were crimanls or people who are in debt...or most of the times just brutually captured and imprisoned. Not only that, selling slaves improved the African economy.

lincoln presided over the union victory in the american civil war, which dominated his presidency. a former whig, lincoln ran on a political platform opposed to the expansion of slavery in the territories. his election served as the immediate impetus for the outbreak of the american civil war.

answer: the time zones used to be whatever the local authority wanted them to be. one town might have 6am whenever the sun came up and another town had 6am 10 minutes later.  

the trains had a hard time when their orders said to be at a certain point at 6am.  

6am, but who's 6am.  

the railroads got together and set the time zones more or less along the longitude lines across the country.

explanation: