The atmospheres of planets change due to volcanic outgassing, vaporization from the surface, and condensation of gases. Each of these processes impacts the composition and dynamics of a planet's atmosphere. Therefore, the correct answer is 'All of the above.'
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The atmospheres of planets can change due to volcanic outgassing, vaporization from the surface, and condensation of gases. Each of these factors significantly influences the composition of a planet's atmosphere over time. Therefore, the correct answer is 'All of the above.' ;