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.
A: Seals protect themselves by using their sensitive ears to let them know when they should swim away from danger, and by using their sharp teeth and strong jaws to defend themselves if they need to fight. A seal's streamlined body allows them to swim away from predators at rapid speeds, which is typically how the seals stay away from predators.