2012 · Q1
Lack of atmosphere around the Moon is due to
General KnowledgePhysics
- Alow escape velocity of air molecule and low gravitational attraction
- Bhigh escape velocity of air molecule and low gravitational attraction
- Clow gravitational attraction only
- Dhigh escape velocity of air molecule only
Explanation
The Moon's weak gravity gives gas molecules escape velocities below their thermal speeds, so it cannot retain an atmosphere (ExamRobot-verified).