Multiple choice general knowledge science & technology

Which is the only moon to have atmosphere?

  1. Phobos

  2. Io

  3. Callisto

  4. Titan
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D Correct answer
Explanation

Titan (Saturn's largest moon) has a thick atmosphere primarily of nitrogen (about 95%) with methane and hydrocarbons. It's the only moon in our solar system with a substantial atmosphere denser than Earth's. Other major moons like Io have only trace atmospheres from volcanic activity.

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