Depends on whether you mean how deep or how far just beneath the surface, and if it's with breathing gear or by simply holding their breath. W/o breathing gear it's not really the water that sets the limit, but eventually the lack of oxygen. Lumping it all together staying shallower than 10 meters and shorter than one minute should be reasonably safe. If you're diving with breathing gear there are charts and computers that'll tell you what the safe limits are, but shallower than 10 meters is fairly safe even for that.
It depends on factors such as individual fitness, diving experience, and medical conditions. A depth of more than 30 meters (100 feet) without proper training, equipment, and supervision can be dangerous due to risks of decompression sickness, nitrogen narcosis, and oxygen toxicity. It's important to follow safe diving practices and consider factors like pressure, time spent at depth, and ascent rates to minimize risks.
Yes and no. Water can be dangerous if there are really big waves. Water can be safe if you are with someone.
Yes, a water spout can be dangerous and potentially deadly if a person is struck by flying debris or is swept up by strong winds and waves. It is important to stay away from water spouts and take precautions during severe weather conditions.
Water, when in contact with electricity, conducts the electricity to spread throughout the water instantly cause major electricity flow throughout the water. Water conducts electricity making it dangerous.
'Brimming water' is the state water is in when it is about to spill over the boundaries of a river, lake or dam. It is dangerous in this state because it is about to cause a flood onto dry land.
Post-immersion collapse, also known as "shallow water blackout," is a sudden loss of consciousness that can occur after a person has been freediving or breath-holding underwater. It is often caused by hyperventilation before diving, which can lead to a decrease in blood oxygen levels without the diver realizing it. This can result in a blackout, which can be dangerous or fatal if it happens while the person is still underwater.
It's very dangerous because there is no Oxigen
no they can't
If cloudy water exists when a person has their own well, perhaps a water softener should be installed to help clear up the water. A person can try a small water softener under the sink for a few days to see if this clears up the water before purchasing.
Yes it is. Someone I know recieved a concushion there one time and was told that someone had their neck broken the week before. That person I know also knew someone that had the same concusion on the same slide as that person I knew did.
They can stay under water for 15 to 20 minutes before they drown.
Over the counter water pills, just like all other over the counter pills can be dangerous. You should always talk you your doctor before starting any medications.
A scuba diver.
diver
If a person drowned, their lungs would be full of water because they breathed in the water. But if they died before drowning then their lungs would not be full of water as they wouldn't have breathed it in because they are dead.
A person can go for about 3 days without water until the serious and dangerous effects of dehydration begin to set in.
The undertow of water can cause a funnel effect which could pull a swimmer under the surface of the water. The flow of the water increases in strength until the person can not break away from the funnel effect. Most beaches and surf lines that have undertow channels will post signs warning simmers, surfers and boaters of the potential danger.
1. It's really big. 2. Most people can't breath under water.