õhukeskkonna
õhukeskkonna refers to the thin environment or atmosphere, commonly used in Estonian contexts to describe the very outer layers of a planet's atmosphere. This region is characterized by extremely low air density and pressure, where the concept of a continuous fluid becomes less applicable. Interactions between particles are more significant than the collective behavior of the atmosphere.
In the context of Earth, the õhukeskkond can encompass the exosphere and parts of the thermosphere. These
The composition of the õhukeskkond differs from denser atmospheric layers, with lighter gases like hydrogen and