EPA 608 Core Test Sample Questions and Answers (2025/2026)

EPA 608 Core Test Sample Questions and Answers (2025/2026) As of what date did it become unlawful to release Class 1 and Class II refrigerants to the atmosphere? a. July 1, 1992 b. July 1, 1993 c. November 14, 1994 d. January 1, 1996 - answer-a. July 1, 1992 What is the ozone layer and why is it important to us on Earth? a. Thin layer of R-22 in the atmosphere that filters UV. b. Protective shield for Earth from the sun's harmful ultraviolent (UV) rays in the stratosphere layer that extends about 6 to 30 miles above earth c. Thin layer of CFC and HCFC in the atmosphere that filters UV. d. Protective layer that shields UV in the Troposphere - answer-b. Protective shield for Earth from the sun's harmful ultraviolent (UV) rays in the stratosphere layer that extends about 6 to 30 miles above earth The atom found in CFC and HCFC refrigerants that destroys ozone in the stratosphere is?a. Fluorine b. Carbon c. Hydrogen d. Chlorine - answer-d. Chlorine