Related Clues:
- Ultraviolet ray absorber
- Important type of layer
- Electrical storm byproduct
- Sensitive layer
- Ultraviolet radiation absorber
- Site of a worrisome hole
- Corrosive stuff from the sky*
- Molecule also called trioxygen
- __ hole
- Layer up high
- Upper atmosphere layer
- Gas with a penetrating odor
- UV filterer
- Certain atmospheric layer
- Stratospheric gas