Crossword puzzle clue "atmospheric layer that has a problematic hole"

Here are the possible solutions for atmospheric layer that has a problematic hole clue

Answer
Clue
Relevancy
ozone
Clue
Atmospheric layer that has a problematic "hole"
Layer with a problematic hole
Atmospheric layer with a "hole" in it
Atmospheric layer
Endangered atmospheric layer
Upper atmospheric layer
Thinning atmospheric layer
Certain atmospheric layer
Definition
an allotropic form of oxygen present in the atmosphere

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