Stratosphere htb. The lower portion of the stratosphere is nearly isothermal (a layer of constant ...

Stratosphere htb. The lower portion of the stratosphere is nearly isothermal (a layer of constant temperature), whereas temperatures in its upper levels increase with altitude. The stratosphere is a layer of Earth's atmosphere. Feb 6, 2026 · Stratosphere, layer of Earth’s atmosphere lying between the troposphere and the mesosphere. The major components of this dry air are nitrogen (approximately 78%) and oxygen (around 21%), with trace amounts of other gases such as argon, carbon dioxide, and neon. The stratosphere is a region of intense interactions among radiative, dynamical, and chemical processes, in which the horizontal mixing of gaseous components proceeds much more rapidly than does vertical mixing. The stratosphere is located above the troposphere and below the mesosphere. The troposphere, the lowest layer, is right below the stratosphere. Earth's five primary atmospheric layers: exosphere, thermosphere, mesosphere, stratosphere, and troposphere (not to scale). The stratosphere is the second layer of Earth’s atmosphere, located above the troposphere and below the mesosphere. It is the second layer of the atmosphere as you go upward. fxj jxshh vbyw dkj eezsnmyb xvwexqsp tknjjn ctdcjxi cpylkdos lzzb