There are two main factor that make ocean water more or less dense than about 1027 kg/m3:
Answer: in one word: onesidedness. disappearance of traditions (at least in their most authentic form), globalization of English, some values, abilities or professions are viewed as positive (flexibility, mobility, commercial use, marketing, IT technologies) whereas others are disappearing or are not respected.
Explanation: each culture and each historical era is onesided, i.e. limited in its views and attitudes. Cultures are not holistic in their approaches. Psyche of common people is not holistic eitherr (of course). It is the same with globalization. The main criterion of values is a commercialization. Superficial approach to the world, nature, animals.
Answer:
The longest time period is eons.
It would be the Caribbean sea! Hope this helps!