U-boats were military submarines used by the Germans. While they were useful against warships, U-boats were the most effective in economic warfare by blockading coasts so resources could not be shipped to Germany's allies. WWI was the first major war that employed submarines in warfare.
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Answer:
(B) Germany had become mostly Lutheran as a result of the strong Protestant influence.
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Answer: D) usually produced goods out of their own homes.
Explanation:
Cottage industries are small scale industries whereby goods are produced by people in their homes using their own equipments.
Labour or members of staff of cottage industries are usually members of the household.
Examples of cottage industries include: Pottery making, Basket making, making of handcrafts.
Goods produced in cottage industries are produced in a small scale, not in large quantities. There is no mass production involved in cottage industries
