Answer:the Zimmerman telegram and unrestricted submarine warfare
Explanation:Germany tried to contact Mexico via Telegraph to try and persuade them to attack the US so that they would be preoccupied and not join the war. The sinking of the Lusitania was the unrestricted submarine warfare
I believe that the answer is c <span>Because Italy is not broken up into small valleys and Apennine mountains are less rugged</span>
From what I read in my own textbook, it is A.
Answer:
The process by which green plants turn carbon dioxide and water into food using energy from sunlight is known as photosynthesis