space medium MCQ

The Caloris Basin is a massive impact feature on which celestial body?

  1. Moon
  2. Mars
  3. Mercury
  4. Vesta

Answer: Mercury

Caloris Basin (~1,550 km diameter) formed from a giant impact early in Mercury's history, causing antipodal chaotic terrain from seismic focusing.

Topic Solar System - Surface Features
Exam Relevance SSC CGL, Railway NTPC
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