The ocean floor or seabed can be divided into three major regions: the continental margins, abyssal plains, and mid-ocean ridges.
Why might a post classical civilization want to conquer Egypt and the Nile River Valley? It's fertile land provided the foundation for the first human civilizations and its access to the Persian Gulf and location between Europe, Asia, and Africa made it a center of trade.
Even though it is slums we are talking about, and we know how terrible the conditions are, still there's always some surprises (negative ones unfortunately). Specifically in Mumbai, it is surprising that big portion of the people living in the slums do not have access to city services, they do not have enough water even thought the city itself is surrounded by water, more then half of the population of Mumbai lives in slums (around 55%), most of the residents do not have toilets and have to pay for public toilets...
Because, like shaking your head yes or no, it is understood by everyone, regardless of region or country.
