Question

starfish can live in salt water or seawater? give the methods to make sea water or saltwater?

Answer 1

tarfish or sea stars are star-shaped echinoderms belonging to the class Asteroidea. Common usage frequently finds these names being also applied to ophiuroids, which are correctly referred to as brittle stars or "basket stars". About 1,500 species of starfish occur on the seabed in all the world's oceans, from the tropics to frigid polar waters. They are found from the intertidal zone down to abyssal depths, 6,000 m (20,000 ft) below the surface.

Scientific classification
Kingdom:Animalia
Phylum:Echinodermata
Superclass:Asterozoa
Class:Asteroidea