Answer:
Pressure
Explanation:
The pressure from the other layers makes it impossible for any liquid to flow, but since it is getting pressed from all around, it is solid.
<em>Sorry if I'm wrong, but I hope this helps!</em>
The hottest stars tend to appear blue or blue-white, whereas the coolest stars are red. A color index of a star is the difference in the magnitudes measured at any two wavelengths and is one way that astronomers measure and express the temperature of stars