Just because it's akward to walk with fins on your feet walking normally, so Scuba divers walk sideways or backwards because it's easier.
Scuba divers fall backwards out of a boat because the tank breaks the water so they don't get hurt.
In the Water....
water proof ones
Because of very high water pressure.
They do not dive deep enough.
Divers fall backwards from a boat because it is often the easiest way to make a deep water entry from a small boat or rib.
Generally no. They need to be quite fit to be able to swim in the water :)
I'm pretty sure that is the only place they can dive.
While scuba equipment is very heavy on dry land, when underwater, the weight of the equipment is alleviated on the divers due to the water buoyancy. Even weak divers have little trouble with managing the equipment.
They can. It just requires special training.
I would call it the Great White Pucker Factor.
Most scuba divers just obtain open water certifications from recreational diver training agencies, such as PADI, NAUI, BSAC or SDI.Only military or commercial divers undertake vocational diving qualifications.
Air pressure creates a 'base amount' of pressure to the scuba divers. There is the effect that it adds on a small amount of pressure as well as the water pressure.
to col off
Because fish have gills and can breathe under water and humans do not
Sky divers use parachutes to jump from planes. SCUBA divers have difficulty searching Loch Ness because there are many inlets and lagoons, and many have so much sediment that the water is very cloudy.
PADI certify its divers by having them to attend school. They have to go through a training course by being a open water diver. The National Academy of Scuba educators is a good school to go to.
Scuba divers can work at 109m if they are very cautious rising to the surface.http://www.divediscover.whoi.edu/robotics/deep.html
PADI (Professional Association of Diving Instructors) is the largest organization who provides certifications and training for scuba divers. Levels of certifications include; open water, advanced, adventure, rescue, and master diver.
Around the world there are many sites (Greece, Egypt, England, the Black Sea, etc) where buildings have become submerged, although not all of these are at a depth that can be explored by scuba divers.
they need protection in water from dangerous animals also there is a problem in breathing so they carry gas cylinder.
Tanks are used to hold air like you breath above water. They do go thru a filtering process that removes the water and other things in air that can harm a diver. Scuba air from a reputable source is very clean and dry.