Why does Mercury have so little gas in its atmosphere?
A) Its mass is small.
B) It has a high maximum temperature.
C) It is close to the Sun.
D) Its escape velocity is low.
E) all of these

Question

Quizplus · Accepted Answer

Mercury's small mass and low escape velocity make it difficult to retain an atmosphere. Its proximity to the Sun and high temperatures also contribute to the loss of atmospheric gases.

Why Does Mercury Have So Little Gas in Its Atmosphere