Final answer:
The layers of the solar atmosphere, in order of increasing distance from the Sun, are photosphere, chromosphere, transition region, and corona.
Step-by-step explanation:
In order of increasing distance from the Sun, the layers of the solar atmosphere are:
- Photosphere: The visible surface of the Sun, where it becomes opaque.
- Chromosphere: The layer above the photosphere, which can be observed during total solar eclipses.
- Transition region: A thin zone between the chromosphere and the corona.
- Corona: The outermost part of the Sun's atmosphere.