Which is the biggest sea in the world?
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Arabian Sea
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South China Sea
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Black Sea
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None of the above
Reveal answer
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B
Correct answer
Explanation
The South China Sea is the largest sea in the world by surface area at approximately 3.5 million square kilometers. The Arabian Sea and Black Sea are significantly smaller, and the question asks for the biggest sea, not ocean.
AI explanation
By surface area, the South China Sea is the largest of the world's seas, covering roughly 3.5 million square kilometers in Southeast Asia. The Arabian Sea and Black Sea are also large bodies of water but are smaller in total area than the South China Sea.