Exam (elaborations)
EPA 608 Certification Core Practice Test questions with correct answers
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As of what date did it become unlawful to release Class 1 and Class II refrigerants to the atmosphere? - Answer July 1, 1992. What is the ozone layer and why is it important to us on Earth? - Answer Protective shield for Earth from the sun's harmful ultraviolent (UV) rays in the stratosphere...
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