Like all adults or older teenagers; scuba divers need English and Maths also physics and scuba diving training. Hope I answered your question xx
Professional Diving is a type of diving where the divers are paid for their work. Recreational diving or sport diving is a type of diving that uses SCUBA equipment for the purpose of leisure and enjoyment. Military, navy, rescue and police diving courses need to be taken per your division or location. Technical and scientific diving is mainly for research and exploration.
Scuba divers require increased air pressures in their air tanks while diving because the pressure on their bodies increases.
Free divers do but scuba divers do not need to. Scuba divers take their air with them and would have no need to hyperventilate.
Scuba diving can be used for recreational purposes where divers can explore wrecks or reefs or marine life. Diving can also be used in a commercial setting by engineers for example who carry out construction and maintenance tasks underwater. Diving is also used by the police when they need to explore expanses of water for various reasons. Other professionals may use diving such as marine biologists who are out to examine fish and other marine life in a conservation capacity
The simple answer is ... you don't. A majority of scuba dives use compressed air in the cylinders. Therefore you don't need "oxygen" cylinders. HOWEVER, if you are a diver that is diving on Nitrox, in which divers change the amount of oxygen vs nitrogen in their air, then your tank needs to be "oxygen clean" because you are putting oxygen in first, then nitrogen.
There are not any courses that would train you to dive this deep. Recreational divers are trained at depths up to 130 feet, over 5,000 feet short of your 1 mile mark. Tech divers are trained to dive deeper, however, the pressure of the water at the depth that you asked about would most likely cause severe bodily harm. In diving u shuld be comservative. If i can do or see what i can do or see at 15 metres, why go to 30?
they need protection from stuff
pectoralis muscles, deltoids, latissimus dorsi, shoulder external and internal rotator muscles, hamstrings, quads
Air in your lungs is compressed by the pressure of the water. As the pressure of the water goes down (as you go up) then the air will expand. If you allow it to expand while trapped in your body, you can damage your ears and lungs. ascending means starting from least and moving towards highest
That would depend on the time of year,water temp,how long you planned to be in the water,how deep you were diving. Best to plan for needing one and use it if needed. Many Florida divers use shorties rather than full wetsuits.
They need to know how to swim away from sharks and such!