Surface, crust, mantle, and core
Answer:
Indian Ocean
Explanation:
Arctic Ocean= Area: 5.427 million mi²
Red Sea= Area: 169,113 mi²
Indian Ocean= Area: 27.24 million mi²
Baltic Sea= Area: 145,561 mi²
If your question is literally how long they could remain without water, the answer is 1-2 days with major side effects, and 3-4 with certain death.
So to me it looks like that into more of the future more people are born in Urban areas and in the Rural areas it looks like it will slowly go down till there is little to none left.
