Exam (elaborations)
EPA 608 Certification Core Practice Test Questions and Answers [Approved Solutions]
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As of what date did it become unlawful to release Class 1 and Class II refrigerants to the atmosphere? July 1, 1992. What is the ozone layer and why is it important to us on Earth? Protective shield for Earth from the sun's harmful ultraviolent (UV) rays in the stratosphere layer that extends ...
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