What might happen to the salinity of the ocean if animals were no longer linving in it

The salinity of the ocean and oceanic animals are not related. Living organisms are not the cause of the salt in the ocean, so if the organisms no longer lived there, there would be no change.

The truman doctrine was an american foreign policy whose stated purpose was to counter soviet geopolitical expansion during the cold war. it was announced to congress by president harry s. truman on march 12, 1947, and further developed on july 12, 1948, when he pledged to contain threats to greece and turkey

Probably a behavioral adaptation