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a divice that supplies air to underwater swimmers
Whales breathe in and out of their blowhole. They are unable to breathe through their mouth because the trachea is not attached to the throat.
the name of the muscle that is attached to your ribs is called a Diaphragm,it helps your lungs to breathe.
poiuydsa
a mid ocean ringe
ocean ridge
The dolphin needs to be in Atlantica. If not, something's wrong. The dolphin is in Undersea Valley I believe it's called, and the Undersea Gorge.
u-boats, "undersea boats"
A mid ocean ridge
we breathe out a gas called carbon dioxide
Many, they are called volcanic undersea mounts.
Chunnel (also called channel tunnel)