A desert island is one with nobody living on it. (from 'deserted' rather than the region 'desert'). Hence it can look like anything, although usually it'll be inhospitable (No fresh water or no trees or something like that (there's usually a reason for nobody to live there)) It could just be a strip of sand.
If people lived on a desert island, it would not be a desert island. It would be an inhabited island.
A desert island is an island that is uninhabited by humans. Therefore you would not find people on a desert island.
With a population of about 1 million people, Tenerife would hardly be considered a 'desert' island. Parts of the island have low rainfall and would have a desert climate.
sandy isolated desert tropical coral rocky
arid
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There is no geographical feature which most people would describe as a 'desert' in the US state of Missouri.
Being shipwrecked on a desert island would do it.
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It's primarily desert.
It is a desert in the southern portion of Israel.
Ocean Coconut. Sea ? If you intended to write 'desert to oasis is (blank) to island', I would say "ocean", but the way the question is worded, the intended answer must be smaller than an island. desert is to oasis as island is to city.