Answer:
The American Civil War (April 12, 1861 – May 9, 1865, also known by other names) was a civil war in the United States fought between northern and Pacific states ("the Union" or "the North") and southern states that voted to secede and form the Confederate States of America ("the Confederacy" or "the South").[e] The central cause of the war was the status of slavery, especially the expansion of slavery into newly acquired land after the Mexican-American War.
Answer:
Groundwater.
Explanation:
Becasue it's underground and not on the surface.
The increase of technology used during the construction of the railroads and factories is considered the second Industrial Revolution. This is because of the many inventions and help of transportation use. Hope this helps.
The late Ming peasant rebellions (明末民變) were a series of peasant revolts during the last decades of the Ming dynasty lasting from 1628–1644.
