Multiple choice general knowledge math & puzzles

Which planet is known as the Red Planet?

  1. Mercury

  2. Mars

  3. Earth

  4. Jupiter
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Mars is called the Red Planet because of the reddish iron oxide prevalent on its surface, which gives it a reddish appearance when viewed from Earth. Mercury is grey, Earth is blue, and Jupiter has brown, orange, and white bands.

AI explanation

Mars is called the Red Planet because iron oxide (rust) covering much of its surface gives it a reddish appearance visible even from Earth. Mercury, Earth, and Jupiter don't have this same rust-colored surface look, so they aren't associated with that nickname.

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