There are very few true altitude tables. Most tables use a conversion table so a sea level table can be used at altitude. In essence you treat your dive as being deeper than it really is - which has the effect of decreasing the no-stop time limits. Time limits need to be decreased because you are surfacing to a lesser atmospheric pressure - which is analogous to flying after a dive.
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The motto of National Academy of Scuba Educators is 'To fundamentally change the way the world learns to use scuba'.
I do not think you can change i at all.
No, you don't need a certain body type to scuba dive. Because you use flippers to SCUBA dive, you can be a very lousy swimmer and learn to SCUBA dive. You may look stupid with a very tight wet suit during scuba diving, but you can dive. When I got certified, I learned that you have a very slightly higher chance of the Bends during scuba diving, but this is a small percentage. The pros of scuba diving outweigh the cons.
No. On average about 17 recreational scuba divers die each year. That is a low number (for 10,000,000 scuba divers worldwide), but I am pretty sure it is higher than the number of people who die bowling.
Either, depending on context. Usually, if used as a noun it is SCUBA; as an adjective, as in scuba diver, it is just scuba.
It's called scuba diving.It's called scuba diving.It's called scuba diving.It's called scuba diving.It's called scuba diving.It's called scuba diving.
Scuba diving.
A scuba diver is a human who enjoys scuba diving. Therefore, a scuba diver has a spine and is a vertebrate.
The pressure will increase
No, but "scuba-diving" is a verb.
'SCUBA' is a noun, referring to the breathing apparatus. 'SCUBA dive' is the verb, with 'SCUBA dived' as the past-tense form.