Exam (elaborations)
EPA 608 Certification Study Guide - Core Test Sample Questions & Answers 2023
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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 ultraviolet (UV) rays in the stratosphere layer that exte...
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