The use of German U-boats force the allies change their tactics. The use of boats/ships to deliver weapons and troops were decreased and naval battles were avoided
I could be wrong, but I am pretty sure that the answer is: D, pollution.
Answer:
the Sedition Act
Explanation:
The Federalist majority in Congress passed the Sedition Act and President Adams signed it into law on July 14, 1798. It was set to expire on March 3, 1801, the last day of the first and—as it turned out—only presidential term of John Adams.
Kangawaya. I’m not really sure how to spell it out it basically said that China had to hand over Hong Kong and open up its trading ports and allow the sale of opium.