What's the difference between crocodile and alligator?

Crocodiles have a pointed mouth ,a alligator has a rounded mouth! The teeth on are arranged different than a alligator than in a crocodile !Crocodiles temper is much more aggressive than a alligator! Alligators live in fresh water, crocodiles live in salt water! Alligators will get away from you but crocodiles will go after you and even kill you!