Q. Which is the world's most-populous island?
Answer: Java Island
Notes: Java Island is the world's most populous island. Java is an island of Indonesia, bordered by the Indian Ocean on the south and the Java Sea on the north. With a population of over 148 million, Java constitutes 56.1 per cent of the Indonesian population and is the world's most populous island.

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📌 Question Number: 83 in Human Geography: Population, Demography, Migration, Settlements, Urbanization in the above course in App.