I Only Have One Answer. Mountains Formed By Tetonic Plates
Gravity
Gravity pulls together air, hydrogen and dust ,therfore forming a star.
The gravitational force in form of vectors is the Gradient of the Gravitational Potential Energy -GmM/r: F= Del -GmM/r = Del -mu/r = mu/r^2 (R/r )= muR/r^3 = mw^2R where 'R' is the radial vector.
Radon is a radioactive gas and one of the noble gases. Dangerous.
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