As they formed, due to their high temperatures and comparatively weak gravitational fields, which planets were unable to retain appreciable amounts of hydrogen, helium, and ammonia?

Question

Quizplus · Accepted Answer

Mercury and Earth, being closer to the Sun and smaller in size compared to the gas giants, have higher temperatures and weaker gravitational fields. This made it difficult for them to retain light gases like hydrogen, helium, and ammonia in their atmospheres.

As They Formed, Due to Their High Temperatures and Comparatively