Depletion of ozone layer - Study guides, Class notes & Summaries

EPA 609 TECHNICIAN CERTIFICATION EXAM 2024 WITH 100% CORRECT ANSWERS 1. T/F Ozone at ground level ans at Stratosphere is a harmful pollutant - correct answer FALSE 2. For determining the Ozone Depletion Potential __________ having been assigned a factor of 1 - correct answer CFC-11 3. Ozone layer absorbs and scatters __________ form the sun - correct answer Ultraviolet light 4. T/F R-134 is a chlorine-free refrigerant - correct answer TRUE 5. a refillable refrigerant cylinder mu...

Climate Change (ATMO 1020) Chapter 5: ODP Highlights [CQ-5] Graded A+ What quirky fact about CFCs (chlorofluorocarbons) makes them notorious for ozone depletion? CFCs were once considered "miracle chemicals" for their stability and non-toxic nature, but they turned out to be stealthy villains, sneaking up to the stratosphere to wreak havoc on the ozone. How do scientists track the health of the ozone layer in real-time? Scientists use sophisticated satellite technology and groun...

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 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 ...

EPA Certification Exam Questions and Answers | Latest Version | 2024/2025 | Already Passed Which type of refrigerants have the highest chlorine content? CFCs Explanation: Chlorofluorocarbons (CFCs) contain a significant amount of chlorine, which contributes heavily to ozone depletion. From which date did it become illegal to deliberately release Class 1 and Class 2 refrigerants into the air? July 1, 1992 Explanation: This date marks the enforcement of regulations against the ...

1. T/F Ozone at ground level ans at Stratosphere is a harmful pollutant o :## FALSE 2. For determining the Ozone Depletion Potential __________ having been assigned a factor of 1 o :## CFC-11 3. Ozone layer absorbs and scatters __________ form the sun o :## Ultraviolet light 4. T/F R-134 is a chlorine-free refrigerant o :## TRUE 5. a refillable refrigerant cylinder must not be filled above _________ of its full capacity o :## 80% 6. T/F Ester-based synthetic oils can be mixed with oi...

EPA SECTION 609 EXAM WITH 120 ACTUAL EXAM QUESTIONS AND 100% CORRECT ANSWERS / EPA 609 TECHNICIAN CERTIFICATION REAL EXAM ANSWERS (BRAND NEW!!) 1. Refrigerant containers which contain refrigerant more than 20 pounds can be sold to a person who holds ____________ - ANSWER-EITHER SECTION 608 OR SECTION 609 CERTIFICATION 2. For determining the Ozone Depletion Potential __________ having been assigned a factor of 1 - ANSWER-CFC-11 3. Ozone layer absorbs and scatters __________ form the...

What characteristic or characteristics of CFCs make them more likely than other chlorine compounds to reach the stratosphere? - Dont disolve iin water Each chlorine atom in the stratosphere can destroy how many ozone molecules? - 100,000 ozone molecules Which refrigerant contains a CFC? R500, R12, R113 or R11? - Theyre all CFC's HYDROCHLORIC FLORICCARBON (HCFC) refrigerant contain? - Hydrogen, chlorine, flourine and carbon Which refrigerant is a chlorine free refrigerant? - HFC R 1...

EPA 608 CORE EXAM TESTS COMBINED | VERIFIED TEST QUESTIONS WITH CORRECT SOLUTIONS Where is the stratosphere? - ANSWER 10 to 30 miles Where is ozone located? - ANSWER stratosphere What does ozone in the stratosphere above the earth consist of? a. Molecules containing 2 oxygen atoms b. Molecules containing 3 oxygen atoms c. Molecules containing 4 oxygen atoms d. Molecules containing 5 oxygen atoms - ANSWER b. Molecules containing 3 oxygen atoms Which of the following refrigerants ha...

EPA 608 Exam Practice Questions 1-100EPA 608 Exam Practice Questions 1-100 Ozone depletion is caused by _______ in HFC refrigerants. - Answer chlorine CFCs and HCFCs ________ making them capable capable of reaching the stratospheric ozone layer. - Answer do not dissolve in water or easily break down in the atmosphere According to the Rolanda-Molina theory, ________ are destroyed by each chlorine atom in the stratosphere. - Answer 100,000 ozone molecules The stratospheric ozone layer prote...

1. T/F Ozone at ground level ans at Stratosphere is a harmful pollutant - correct answer FALSE 2. For determining the Ozone Depletion Potential __________ having been assigned a factor of 1 - correct answer CFC-11 3. Ozone layer absorbs and scatters __________ form the sun - correct answer Ultraviolet light 4. T/F R-134 is a chlorine-free refrigerant - correct answer TRUE 5. a refillable refrigerant cylinder must not be filled above _________ of its full capacity - correct answe...