Equipment changes depending on the location of the dive and purpose. Basic equipment include, wetsuit, fins, snorkel and mask, lead weight, Scuba tank, BCD (Buoyancy Compensation Device), and Regulator.
In a tenths situation is when sky divers use decimals.
ANSWER:Metal helmets are still in use by professional divers. Many consider the metal helmet to be safer than SCUBA gear.
Mask, fins, snorkel, knife, tank, bcd (buoyancy control device), wetsuit, weight belt, regulator, pressure gauge, depth gauge, etc.
You can breathe underground by using submersible breathing aparatus similar to scuba gear used by divers.
Many people use a SCUBA suit for diving. Sport divers, police divers and some Navy recovery divers.
Many scuba stores sell scuba diving cameras. Check a scuba gear stores in your area. This will allow you to compare cameras and get advise from fellow scuba divers.
Shamwow!
Divers use 21% Oxygen and 79% nitrogen while underwater. It results in the same exact air we breath on the surface.
No Specialized gear is needed to dive to the depths where the Lusitania rests. At 450 feet the wreck is not available to sport divers.
To use it in that form, you could use it as a command. For instance, Dive into the water. To use it in another way, you would have to change the verb tense to "dove" or "diving" or something else like that.
Gravity.
The army of which country?