To be a Scuba Diver you have to take a course in scuba diving which varies in cost depending on how old you are or where you are in the world .
I haven't heard that term when relating to the US Navy. But in the Royal Navy SDG is a scubadiver
There are acient Egyptian descriptions of people below the water. The most famous modern scubadiver is Jacques Cousteau.
Chefs need to know how to cook, obviously and they need to know measurements.
You need to know not to do them while you are pregnant. You need to know not to do any drug that doesn't come from the earth. You need to know when to get high and when not to.
They do not need to know.
what do vetenarians need to know
I think the real guestion, why do you need to know about what you need to know?
Need more info, need to know what a calibrator is.
I Know What You Need was created in 1978.
If you tell people something on a need-to-know basis, you only tell them the facts they need to know at the time they need to know them, and nothing more.
college and you need to know how to work on cars and what your need to know about it
You need to know how to make it on the computer and you need to know all the graphics and size of the game. You also need to know what characters or the stuff in the game.