What did scientists learn in the 1930s that led to the Manhattan Project? a. how to split atomic nuclei
b. how to carry bombs in planes
c. how to make weapons more accurate

A

Explanation:

Kinda obvious ngl

Nuclear fission (splitting the atom) was the fundamental discovery leading to the Manhattan Project.

Explanation:

the labor movement in the united states grew out of the need to protect the common interest of workers

for those in the industrial sector organized labor unions fought for better wages reasonable hours and safer working conditions

  in the 19th century trade unionism was mainly a movement of skilled workers.

hope this

answer: to communicate with people on the other side.

explanation: