Ozone in the stratosphere - Study guides, Class notes & Summaries

November 14, 1994 - What date was the sale of CFC's & HCFC's restricted to technicians certified in refrigerant recovery? Memorize it, ya'll. - 1987- Montreal Protocol July 1 1992- Violation to vent CFCs or HCFCs Nov 15 1993- Recovery/Recycling equipment must be certified and labeled by EPA AND Before this date recovery equipment needed to be capable of removing 80% of the refrigerant, w or wo compressor, or 4 in Hg After this date recovery equipment needs to be capable of ...

CHAPTER 3—ECOSYSTEMS: WHAT ARE THEY AND HOW DO THEY WORK? MULTIPLE CHOICE 1. Scientists estimate that tropical rain forests contain up to half of the earth’s land plants and animal species. What percentage of the world’s land surface do tropical rain forests cover? a. 2 b. 4 c. 8 d. 10 e. 12 ANS: A PTS: 1 TOP: 3-0 Core Case Study: Tropical Rain Forests Are Disappearing KEY: Bloom's: Remember NOT: New 2. The disappearance of the tropical rain forests is an import...

Which of the following is a factor in the Earth's atmosphere? composition electromagnetic radiation albedo geoengineering correct answers composition Which of the following atmospheric gases are derived from both natural processes and anthropogenic processes? oxygen carbon dioxide argon water vapor correct answers carbon dioxide Which of the following layers of the atmosphere contains the ozone layer? mesosphere troposphere stratosphere ionosphere correct answers stratosphe...

ODP Test Questions and Answers Already Passed What innovative materials are being explored to replace CFCs in refrigeration? Researchers are exploring hydrofluoroolefins (HFOs) and natural refrigerants like CO2 and ammonia. How does public awareness impact ozone layer conservation efforts? Public awareness leads to increased demand for eco-friendly products, encouraging industries to adopt sustainable practices. What unusual impact can ozone depletion have on agriculture? Ozone ...

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 ...

Dont disolve iin water What characteristic or characteristics of CFCs make them more likely than other chlorine compounds to reach the stratosphere? 100,000 ozone molecules Each chlorine atom in the stratosphere can destroy how many ozone molecules? Theyre all CFC's Which refrigerant contains a CFC? R500, R12, R113 or R11? Hydrogen, chlorine, flourine and carbon HYDROCHLORIC FLORICCARBON (HCFC) refrigerant contain? HFC R 134A Which refrigerant is a chlorine fre...

Which Refrigerants contain the most chlorine? - correct answer CFC's As of what date did it become unlawful to intentionally release Class 1 and Class 2 refrigerants to the atmosphere? - correct answer July 1, 1992 Which Refrigerants have the lowest zone depletion potential? - correct answer HFC's The molecule found in CFC's and HCHC's refrigerants that destroys the ozone in the stratosphere is: - correct answer Chlorine Stratospheric ozone consists of: - correct answer Three oxy...

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 protects us from _______. - Answer-ultraviolet radiation from the sun Which...

As technicians, we must follow and be up to date on all: : Federal Law State Law Local Law For Universal Certification, you will receive how many questions? : 100 If you need to get Type III certification, which of the following will be on your exam? : 50 questions - 25 Core questions and 25 Type III questions What is a passing grade for all EPA certifications? : 70% Once you take the EPA exam, you must memorize all regulations because they will stay the same forever. 2 | P a g e ...

EPA Certification Questions With Revised Correct Answers BEST UPDATED!! Measurements of CFCs in air samples from the stratosphere..... - ANSWER Positive evidence that CFCs are in the stratosphere Evidence of chlorine monoxide in the upper stratosphere indicates.... - ANSWER that the ozone layer is being destroyed Internal pressure of a cylinder with one ounce of liquid refrigerant.... - ANSWER is exactly the same as a full cylinder Disposable, and refillabl...