Answer:
The causes of the US entry into WW1 included the Sinking of the passenger ship the Lusitania which was sunk by a German U-Boat. ... Wilson asked Congress to declare war against Germany, and the US entry into WW1 began on April 6, 1917
Explanation:
Answer: electricity, petroleum & an inexpensive way to produce steel
Explanation:
The black plague was caused by rats and sewer opening that were in the streets it affected England by killing millions.
