👉 A trochosphere is a layer of air between the Earth's surface and the atmosphere. It forms at the top of the atmosphere, where the temperature is relatively high due to its proximity to the Sun. The thickness of this layer increases as altitude increases, with the tropopause being the point where air temperatures drop below freezing. The term "trochosphere" refers to the region above the tropopause, which can be defined as the highest part of the atmosphere that remains at a temperature of about
