What were some tactics used to decrease the number of Nazi U-boat (submarine) attacks off the North Carolina coast? Question 4 options: Supply ships were completely banned from the North Carolina coast. American submarines began patrolling the area and torpedoing the U-boats. Airplanes were used to spot U-boats, so they could be avoided or destroyed. A blackout along the coast made it more difficult for the U-boats to target ships. Pick the answers more than one answer that goes with that question

The tactics used to decrease the number of Nazi U-boat attacks off the North Carolina coast during World War II included:

1. Airplanes were used to spot U-boats, so they could be avoided or destroyed.

  - This is an accurate tactic. Aircraft played a crucial role in spotting U-boats and disrupting their operations. By identifying the submarines from the air, naval forces could take appropriate actions to avoid or engage them.

2. A blackout along the coast made it more difficult for the U-boats to target ships.

  - This is also correct. Implementing blackout measures along the coast, which involved dimming or turning off lights at night to reduce visibility from the sea, was a defensive tactic. It aimed to make it harder for U-boats to identify and target ships along the coastline.

Therefore, the two correct tactics used to decrease the number of Nazi U-boat attacks off the North Carolina coast were:

- Airplanes were used to spot U-boats, so they could be avoided or destroyed.

- A blackout along the coast made it more difficult for the U-boats to target ships.