📝 The Germans retaliated with mines and submarine attacks

Q1. In early 1915, the German navy began laying mines in the North Sea. How many ships were sunk by these mines by the end of 1915?

💡 Difficulty: easy | ✅ Correct: B

Q2. If a convoy of 10 merchant ships travels at 10 knots and a German submarine can travel at 15 knots, how many hours does the submarine have to catch up if it starts 30 nautical miles behind?

💡 Difficulty: medium | ✅ Correct: B

Q3. Which German admiral advocated for the use of mines as a primary naval strategy in 1916?

💡 Difficulty: hard | ✅ Correct: A