Answer: OZONE

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Air we know 18 Answers
It protects everybody we know 1 Answer
It's a gas we know 10 Answers
Atmospheric layer we know 1 Answer
Fresh air we know 1 Answer
Form of oxygen we know 1 Answer
It's overhead we know 4 Answers
Environmentalist's concern we know 12 Answers
Protective layer we know 3 Answers
Layer with a hole we know 1 Answer
Important layer we know 1 Answer
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Ultraviolet ray absorber we know 1 Answer
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Refreshing air we know 1 Answer
Layer with a hole in it we know 1 Answer
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Imperiled layer we know 1 Answer
Gas in a layer we know 1 Answer
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Lightning byproduct we know 1 Answer
Layer up high we know 1 Answer
Kind of hole we know 3 Answers
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Clear air we know 1 Answer
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UV blocker we know 2 Answers
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Ray blocker we know 1 Answer
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What CFC's deplete we know 1 Answer
Water sterilizer we know 1 Answer
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Triatomic form of element #8 we know 1 Answer
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Swimming-pool sanitizer we know 1 Answer
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Stratosphere layer we know 1 Answer
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Spa sanitizer we know 1 Answer
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Radiation-reducing layer we know 1 Answer
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Protection around the world? we know 1 Answer
Photochemical smog component we know 1 Answer
Part of the stratosphere we know 1 Answer
Pale blue gas we know 1 Answer
Oxygen allotrope we know 1 Answer
Odorous oxygen we know 1 Answer
O-O-O we know 1 Answer
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Layer with holes we know 1 Answer
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Fresh air, slangily we know 1 Answer
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Earth's ___ layer we know 1 Answer
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Clear, fresh air we know 1 Answer
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Air way up there we know 1 Answer
A high flier may fly in it we know 1 Answer
"Fresh air" we know 1 Answer
_____ hole (modern worry) we know 1 Answer
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