What is the defining habitat nature that separates tortoises from sea turtles and terrapins?

Answer

Terrestrial

Tortoises are defined largely by their terrestrial nature, meaning they are creatures of the land, contrasting sharply with sea turtles (ocean) and terrapins (freshwater or brackish).

What is the defining habitat nature that separates tortoises from sea turtles and terrapins?
animalclassificationreptiletortoisetestudine