Multiple choice general knowledge Biggest island of the world is Iceland Greenland None of the above Andaman Nicobar Reveal answer Fill a bubble to check yourself B Correct answer Explanation Greenland covers approximately 2,166,000 sq km, making it the world's largest island by land area. Australia is classified as a continent, while Iceland (102,000 sq km) and the Andaman Nicobar islands are significantly smaller landmasses.