The statement that accurately describes the way light waves propagate is:
Light waves travel faster in solids than in air.
In general, light travels fastest in a vacuum, followed by air, then liquids, and slowest in solids, since the speed of light is affected by the medium it is traveling through. However, it's important to clarify that while light does travel faster in some solids compared to some liquids and gases, the statement's context might depend on specific materials. But broadly speaking, the order of speed is typically vacuum > air > liquids > solids in general applications.