<h3><u>Answer;</u></h3>
U Boat
<h3><u>Explanation</u>;</h3>
- U-boat is an anglicised version of the German word U-Boot. It is the shortening of underseaboat. It describes the submergible watercraft that they developed and used extensively for world war i.
- German began to employ U-boats to break a stalemate at sea. U-boats were traveling under water ships.
- They were used to sink British supply ships with no warning. Due to the British blockade, with it's fleet bottled up, Germany had to use U-Boats to get at the British lifeline across the Atlantic.
More personal questions ask an adult
Input light and energy output glucose
Answer:
When the hypothalamus senses that you're too cold, it sends signals to your muscles that make your shiver and create warmth