they may have gills
Crocs don't breathe underwater. They have lungs and Breathe air pretty much just like you and I. They hold their breath when they dive.
Crocodiles close there valve to stay under water.
using their skin :})
They don't, any aquatic reptile needs to return to the surface to breathe after a while, the only creatures that can breather underwater are fish (and all their variants ie: sharks, stingrays etc)
They use their gills to breathe under water.
Crocodiles and alligators breathe in the water by raising their head and snout above the waters surface. Since they do not have gills, they have to hold their breath underwater. When hunting, only their eyes and snout are visible, making them look like a piece of driftwood.
squirres can't breathe under water.
No, but crocodiles can hold their breath under water for long periods of time if needs be (some large adult crocs have been known to hold their breath for 2 hours or more!)
Crocodiles mostly stay underwater for shelter if its raining either way crocodiles are fine.
They do not breathe underwater. They hold their breath under the water and surface to breathe.
Squirrels cannot breathe under water.
Scorpions can breathe under water, False. Scorpions cannot breathe under water but they can however hold their breath for up to 6 days