It is doubtful. Canada has never had nuclear powered ships or subs. the current submarines (victoria class) were acquired from the UK and are desiel powered. Canada does not have any plans in the future for any nuclear power vessels.
USA has the most nuclear submarines
Argentina had diesel-electric submarines while the British had nuclear-powered submarines.
The Canadian Maritime Forces (MARCOM) currently operates 4 Victoria-class Diesel-Electric submarines. However, noting (like every other major power has already) the limitations and expense of maintaining diesel boats, it has undergone a new program of developing nuclear powered boats. It's estimated the first will be ready within the next 2 or 3 years.
A number of nuclear submarines sank, and the circumstances vary from accident to accident. Wikipedia has a list, and by going there and entering "List of sunken nuclear submarines" you can review that list.
Nuclear submarines are powered by a nuclear reactor and they are completely independent of air, so there is no need to surface frequently.
The US, Russia, Great Britain, France, China and (recently) India have nuclear submarines.
Yes, nuclear submarines generate nuclear power. There is a nuclear reactor on board (hence the tern nuclear submarine) which creates steam to drive the main engines to turn the screw(s).
Yes they do. They've got 3 of thoseAns 2 - The 'Armada de Mexico' has NO submarines of any kind !Currently they have 1 destroyer, 6 frigates, 2 missile corvettes and a number of patrol boats.
Nuclear Energy
The PLA navy has more than 225,000 personnel and is thought to have as many as 70 submarines, 10 of them nuclear-powered
Plutonium can be used in nuclear reactors for nuclear propulsion of ships and submarines.
No - all submarines, be it nuclear or diesel-electric, use diesel fuel, either for primary engines (DE) or backup generator (nuclear).