1. Tardigrade
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  4. On any planet, the presence of atmosphere implies (Crms = root mean square velocity of molecules and Ve = escape velocity)

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Q. On any planet, the presence of atmosphere implies ($C_{rms}$ = root mean square velocity of molecules and $V_e$ = escape velocity)

Kinetic Theory

Solution:

Presence of atmosphere on any planet implies that $V _{ rms }<<<< V _{ e }$ (if $V _{ rms }$ is equal or greater than escape velocity, then all the gases will disappear from gravitational field of planet and no atmosphere will be present).