Can scuba divers give their air to freedivers?
Why can't the scuba diver share gas with the freedivers?
If nitrogen is very dangerous for divers, why don't they simply leave it out of diving bottles? What is scuba diving? Can scuba divers kick or punch upwards and make a new hole in the ice if necessary in order to reach the surface? What makes cave diving so dangerous? Scuba Diving: How long can one stay at 50 feet without having to undergo decompression? What is the reason why divestment fails? What is it like to scuba dive? What are some scuba diving careers? What do you do if you get caught in a monofilament line while scuba diving and don't have a knife that can cut it? At what depth is a diving bell’s air dangerously compressed? How deep can sea divers go? How do deep divers train? What is cave diving? What makes cave diving so dangerous? Why are there snorkels on the International Space Station? I do not know how to swim. Can I still attempt scuba diving? Should person know swimming to do scuba diving? Why do Typhoon-class submarines have swimming pools inside? Isn't that a waste of space that could be used to store more food? Why did whales and dolphins evolve breathing holes behind their heads? How and why do deep ocean trenches occur? Why are they so deep? What keeps life sustaining gas in our atmosphere? Why can't they just escape to the outer space? Do special ops forces emerging from underwater have to drain their gun barrels before shooting? What's it like to scuba dive at night? Why does a submarine implode at a certain depth, but some marine life can live on the ocean floor in the deepest oceans without being crushed? Why don’t fishes die in the deep sea? How do they survive that much high pressure? Why do deep ocean trenches form? How deep sea creatures survive under so high water pressure.? How does a divergent nozzle accelerate supersonic fluids? Where, how and why do deep ocean trenches occur? Why can't a centrifugal pump pump air as it can lift different density fluids to the same head? Why do killer whales fin curl in captivity? Why are nuclear power plants not built underwater to use gravity to flood reactors when the cooling system fails?