Answer:
Unrestricted submarine warfare by Germany
Explanation:
Did you know that Germany sunk the ship with passengers called "The Lusitania"? Germans thought it might have been a allied ship carrying ammunition, and weapons. A total of 1,195 people we killed. Including 128 Americans.
Answer: Between about 47,000 years and 9.8 billion years after the Big Bang, the energy density of matter exceeded both the energy density of radiation and the vacuum energy density.
Explanation:
John Brown stirred up a lot of controversy with his attack on "Harper's" Ferry in Virginia
Answer: I believe the answer is A but im not very sure.