Consider the following statements in case of terrestrial planets : I. Mercury, Venus, Earth and Mars are terrestrial planets having low densities as compared to other planets. II. They lie between the Sun and the belt of asteroids. III. Their lower gravity can hold the escaping gases. Which of the statements given above is/are correct?
- A. I and II
- B. II and III
- C. I and III
- D. II only ✓
Correct Answer: D. II only
Explanation
Terrestrial planets possess high densities (composed of rock and metal), unlike the Jovian gas giants. Because of their lower mass and gravity, they cannot effectively hold lighter escaping gases like hydrogen and helium.
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