What physical process changed the geological area and composition of the earths ocean

Iwould sure like to answer your question but i honestly just don’t know

Ithink the answer would be 1,350!

Answerthe global climate during the paleogene departed from the hot and humid conditions of the late mesozoic era and began a cooling and drying trend which dispite having been periodically disrupted by warm periods such as the paleocene-eocene thermal maximum, persists today;