1 Understanding a Photosynthesis Diagram Photosynthesis is a process by which plants convert the radiant energy of sunlight into chemical energy that can be used by themselves to power their lives. 2  A diagram of photâ¦.
U-Boat Crew. The crew numbers aboard a U-boat varied greatly between different U-boat types and the mission it was undertaking. A Type II U-boat comprised of 25 officers and seamen, while a Type VII housed approximately 45. A Type IX had about 50 and Type XXI had a 57 man crew. Sometimes U-boats carried specialist crews on special missions, such as scientists, spies or commandos.
United States. While the United States Navy is runner up on this list of the 10 largest submarine fleets in the world, it is arguably the most capable. While most of the countries on this list have fleets that are largely diesel-electric, the entire fleet of the US Navy is nuclear powered. The US has a large number of Los Angeles class attack submarine.