Scuba was invented by the navy.
Both it was Jacques Cousteau and Emile Gagnan who invented the modern scuba gear in 1942.
Different scuba gear types weigh different amounts. The oxygen tank is the heavy part of the scuba diving gear.
Scuba gear
You put a zoo on your back, suit up in your scuba gear, and set off into the unknown!!! Also, I have invented a new zoo container which allows you to fit a whole zoo into it. Buy at www.zoobagforsalebysillyguytypingrandomwebadressesalsoifyoudidn'tgetthehintbythiswebadressyouareabigfatidiotandshouldhaveyourheadexamined.com
Underwater!
Scuba gear
Jacques Cousteau is credited for and I believe invented the modern SCUBA gear for diving, making diving a sport accessible to many.
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.
The best area to sell scuba gear in the USA is to set up scuba gear shops in areas near bays and oceans. This could mean on the USA's three major coastlines and also the many large lakes that exist in so many places in the US. The Great Lakes is an excellent place to sell scuba gear.
yes
If you are not certified No you cannot rent scuba gear