It appears in Drop Island Hill, when Drop Island has sunken it appears in Milonda Island Old Mansion
A world seed for Minecraft 1.3.2 like that is: Artomix.
No, you cannot.
Thunderball
yes, it is the survival island from minecraft
Sunken is not a verb so it doesn't have present or past tense. Sunken is an adjective
generally xerophytic plants have sunken stomata
The island is not accessible in its sunken state. The Games were playable from June 2012 to January 2013. Before the island rises again, there is a likely quest planned that will further explore the legendary land of Poptropolis.
A very vague question... There are three lakes and not one of them has a sunken island. Acuity, Verity and the other one :| are home to three legendary pokemon, Mesprit, Azelf and Uxie. They appear in the islands that are in the middle of these three lakes after you have defeated/captured Giratina in the Distortion world. All you have to do is surf to these. I hope this answers your question.
survival island or skyblock
Well, you can always make one.
A sunken island is typically surrounded by a coral reef, which can form a barrier or fringing reef. These reefs develop as coral polyps build structures around the submerged land, creating diverse marine ecosystems. The reef can protect the island from erosion and provide habitat for various marine species. Over time, the reef may also contribute to the growth of new land as sediment accumulates.