Which of the following Planet has the smallest diameter?

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Which of the following Planet has the smallest diameter? Answer: Mercury

Mercury is the smallest planet in our solar system, with a diameter of approximately 4,880 kilometers, which is only about two-fifths the size of Earth.

Question context

This question is part of 📚 General Knowledge within the broader 🌐 Current Affairs & GK subject and appears in the ASF Airports Security Force preparation collection. Reviewing the answer together with nearby questions helps reinforce the underlying concept and identify how it may appear in competitive exams.