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What role did the Royal Canadian Air Force (RCAF) play in the Second World War?

  1. Providing aircrew in bombers and fighter planes

  2. Inventing radar technology

  3. Sinking German submarines

  4. Developing the atomic bomb

The correct answer is: Providing aircrew in bombers and fighter planes

During the Second World War, the Royal Canadian Air Force (RCAF) played a crucial role in providing aircrew for bombers and fighter planes. The RCAF was responsible for recruiting, training, and deploying pilots, navigators, and other crew members to support allied air operations. This option is the only one directly related to the role of the RCAF in the war, as the other options do not involve the use of Canadian personnel in combat. While Canada did contribute to the development of radar technology and the sinking of German submarines, these were efforts led by other countries and not specific to the RCAF. Additionally, Canada did not play a significant role in the development of the atomic bomb, which was primarily led by the United States and the United Kingdom.