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.
scorching bellowing sandy lifeless anything bad really
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.
A desert island is not specific to any climate; however it is unlikely that a desert island would have a desert climate... because it's an island; a chunk of land in the middle of water. The desert in desert island means that no-one lives there... it's deserted. Islands in the Arctic and Antarctica could be considered deserts, but one usually connotes desert islands as having tropical climates.
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Being shipwrecked on a desert island would do it.
It's primarily desert.
It is a desert in the southern portion of Israel.