What are the 3 types of submersible vehicles?

The three types of submersible vehicles are manned submersibles, unmanned remotely operated vehicles (ROVs), and autonomous underwater vehicles (AUVs). Manned submersibles are designed to carry human occupants for deep-sea exploration, while ROVs are operated from the surface and can be equipped with various tools for tasks like inspection and maintenance. AUVs operate independently, following pre-programmed paths to collect data or perform specific missions without real-time human control. Each type serves different purposes in underwater research and exploration.