The United States first began developing nuclear weapons in 1939, during World War II, under the order of President Franklin Roosevelt. Motivation was the fear that US was engaged in a race with Nazi Germany to develop nuclear weapon. This project is best known as Manhattan Project.
Answer:
becz
Explanation:
there was lack of resources in east that time
The answer is #2 because it was a steady growth but when 1910 came it started to fluctuate.
Huh I don’t speak your language
