As of what date did it become unlawful to release Class 1 and Class
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II refrigerants to the atmosphere?
What is the ozone layer and why is it important to us on Earth?
The atom found in CFC and HCFC refrigerants that destroys ozone in the stratosphere is?
What is an ozone molecule made of?
Which refrigerant is a CFC?
What is the name of
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