Atmospheric sphere Definition the air layer which surround the surface of earth and circumrotate with earth (包围地球表面并随着地球旋转的空气层) The thick is around 2000km--3000km >The character of physics and chemistry of atmospheric sphere is change with heightAtmospheric sphere • Definition：the air layer which surround the surface of earth and circumrotate with earth. (包围地球表面并随着地球旋转的空气层) ➢The thick is around 2000km～3000km. ➢The character of physics and chemistry of atmospheric sphere is change with height