Yes. Snails have gills, which makes them able to breathe underwater.
Squids doesn't have lungs, they have a structure that does the same thing as the gills do for fish, take up oxygen from the water. W/o lungs, the idea of holding their breath becomes a bit strange. The closest comparison - how long a squid can go w/o new water over its gills - I have no idea.
Snails have gils.
No, not all snails can live underwater. Some snails are adapted to live in water, while others live on land.
Yes, some snails can survive underwater by breathing through their skin or using a special breathing tube.
Holding your breath underwater is when your head/face is underwater and you do not breath.
No, garden snails cannot breathe underwater as they require air to breathe. They have lungs and need to surface to breathe air.
Actually aquatic snails must breath out of water. They breath from the surface.
Snails cannot breathe underwater. They need air to survive as they have lungs or gills to take in oxygen from the air.
Hippos can't "breath" underwater but they can hold their breath for long periods of time.
ocean/pond/river
You find Them under Water =]
No, land snails cannot breathe underwater. They have lungs and need air to breathe. If they are submerged in water for too long, they will drown.