For stabilization
Yes, they have lots of safety precautions.
submarines are important because people need to go under the sea and do what they got to do to save the world
USSR; US; UK; Germany & Japan.
It depends on the real question. If meant literally, then yes, women are allowed on submarines. They can visit some submarines. If the question is, "Are women allowed to serve/work on submarines?" then it depends on the country. In the Royal Navy (UK) they are not allowed to serve at present. The United States, however, is gearing up to allow some women officers to serve aboard U.S. Navy nuclear submarines.
Since its free-fall nuclear weapons arsenal was decomissioned in 1998, the United Kingdom's only means of nuclear weapons delivery is via submarines and SLBMs.
Germany was first to use submarines in World War 1 knwn as " U- 2 ". Later on UK and USA produced their own version. - b sharma.
Nuclear submarines are powered by a nuclear reactor and they are completely independent of air, so there is no need to surface frequently.
Because submarines need air.
The Royal Navy Operates 6 Trafalgar class submarines and 1 Astute class. These submarines are called 'attack' or 'hunter-killer' submarines and have roles such as land attack using Tomahawk cruise missiles and anti-surface and anti-submarine roles using the Spearfish torpedo. They can also carry out surveillance and reconnaissanse. The Royal Navy also has 4 Vanguard class submarines. These submarines are ballistic missile submarines. These submarines are responsible for the UK's nuclear detterent and use the Trident missile system. There is always at least one of these boats at sea at any given time.
No - all submarines, be it nuclear or diesel-electric, use diesel fuel, either for primary engines (DE) or backup generator (nuclear).
you need sea defenses to keep unwanted vessels (boats, submarines, etc.) out.