churn in Business English. churnnoun [ U ] Preventing customer churn is a major concern for mobile service providers, since 20-40% of customers leave their providers in a given year. Employee churn for new hires increased by 33% for the third straight year.
For 18 months, the baby nurses while its mother is on land, or it swims underwater to suckle. When it dives, the calf closes its nose and ears to block out water. All hippos have this ability. They also have membranes that cover and protect their eyes while they are underwater.
Best Answer: Yes. Alligators and crocodiles can sleep underwater. They have little slits on the sides of their heads that act as gills that permit them to breathe for very long periods of time underwater.They are amphibious as well as reptilian.ell, i think they only sleep on land. As far as I know, crocs and alligators breath through their lungs and they would constantly come up to the surface to breath during their time in the water. westervel Â· 9 years ago. Thumbs up.