Multiple choice

Titan is the largest natural satellite of planet

  1. Mercury

  2. Venus

  3. Saturn

  4. Neptune

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Titan is the largest moon of Saturn, discovered in 1655 by Christiaan Huygens. It's the only moon in our solar system with a substantial atmosphere and is larger than the planet Mercury. The other options (Mercury, Venus, Neptune) are planets, not moons.