Answer:
correct me if wrong, but I think it was the Pearl Harbor
Explanation:
The main reason the United States entered World War<span> I in 1917 was the unrestricted attacks German submarines were making on American ships and ships containing American passengers. Additionally, Americans were enraged at a telegram British intelligence intercepted in which Germany sought an alliance with Mexico.</span>
<span>A formal settlement ended United States involvement in the Vietnam War.
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Answer:
The only two disadvantages I know is that the photographs when taking them were incredibly sensitive to movement and so they had to sit still for a long time and had to keep their eyes shut. The other disadvantage was that the person taking the photo could have contracted mercury poisoning.
Explanation: