space medium MCQ

Which moon has a substantial nitrogen-methane atmosphere thicker than Mars?

  1. Europa
  2. Ganymede
  3. Titan
  4. Triton

Answer: Titan

Titan's surface pressure is 1.5 bar (vs Mars' 0.006 bar), composed of N₂/CH₄ with organic haze layers; only moon with dense atmosphere and active hydrological cycle.

Topic Solar System - Atmospheres
Exam Relevance SSC CGL, UPSC Prelims