I Don't see any multiple choice answers but i'm going to take a gander and guess that the answer you are looking for is "<u>Coal</u>"
Answer:
C. The threat of nuclear war.
The United States didn’t have a working relationship with China because of Corona
Answer:
North America and Europe are least infected by the el nino
Explanation
Mot of the tates in those continents have are non infected by and more able to recover from climate change
I think the most significant cause of World War one was the assassination of the Archduke Franz Ferdinand. The other causes of the war was Imperliasm, Militarism, Nationalism and Alliances that were formed.
