Ozone layer - Study guides, Class notes & Summaries

OZONE Layer Protection; CFC Exam Questions and Answers OZONE Layer Protection; CFC Exam Questions and Answers OZONE Layer Protection; CFC Exam Questions and Answers ozone construction exists as 3 basic forms - ANSWER-o - oxygen atom o2 - oxygen molecule o3 - ozone molecule - toxic, unstable gas, protects us from UV sunlight sunlight strikes o2 molecules and splits them, the floating o atoms will "float" and come into contact with o2 to form - ANSWER-o3- ozone molecule the stratosph...

CFC's and the ozone layer | Questions and Correct Solutions Latest Update 2024 CFCs are organic molecules that contain 3 elements: - Answer - carbon, chlorine and fluorine CFCs are both non - Answer - toxic or flammable and start off unreactive In water CFCs are - Answer - insoluble CFCs have a low - Answer - boiling point CFCs were used in - Answer - refrigerators, air conditioning systems, propellants and aerosol spray cans In 1974 discovered the truth behind CFCs which was that - Answ...

Oregon State Board Exam - Esthetics (2023)Solved And Already Graded A+ Oregon State Board Exam - Esthetics (2023)Solved And Already Graded A+ The muscles that respond automatically to control various body functions are: anterior striated voluntary non-striated - Answer non-striated Bacteria are single cells that are circular, spiral or: rod- shaped square-shaped angular-shaped triangular- shaped - Answer rod- shaped Disease-producing bacteria are called: virus microbes ...

ozone construction exists as 3 basic forms - Answer- o - oxygen atom o2 - oxygen molecule o3 - ozone molecule - toxic, unstable gas, protects us from UV sunlight sunlight strikes o2 molecules and splits them, the floating o atoms will "float" and come into contact with o2 to form - Answer- o3- ozone molecule the stratosphere is approx. how far away above earths surface - Answer- 15 to 50 km normally there is a balance between the ___________ and ___________ of o3 - Answer- destructi...

EPA SECTION 608 CORE (2021-2022 revision) A disposable cylinder should be reduced to what pressure before scrapping? a. 0 psig b. 20 psig c. 50 psig d. 80 psig A major system repair is being performed on a R-22 appliance. What CANNOT be done to recharge the appliance? a. Add R-22 after the repair is complete. b. Retrofit the unit to R-407C. c. Use recovered or recycled R-22 from the same owner. d. Top off the unit with R-410a. A refillable cylinder must not be filled above what ...

ODP Test Questions and Answers with Verified Solutions What role does the ozone layer play in protecting life on Earth? A) It provides fresh air B) It acts as a shield against harmful UV radiation C) It regulates temperature D) It helps with plant growth What is the main purpose of the Montreal Protocol? A) To phase out substances that deplete the ozone layer B) To increase fossil fuel use C) To promote chemical manufacturing D) To enhance air quality Which of the following s...

PRAXIS CRAM - BIOLOGY 5236 LATEST UPDATE GRADED A+ Pros of stem cell research Curing genetic diseases Growing skin for burn victims Growing new organs Cons of stem cell research Harvesting embryonic stem cells kills the embryo, what constitutes a viable embryo? Cons of genetically modified foods Man should not interfere, allergens, modifications not contained-could pass in to wild species Cons of cloning - reduced gene pool - animals less healthy - worries that humans could ...

EPA 609 Technician Certification (Questions and Answers, 100% Correct) 1. T/F Ozone at ground level ans at Stratosphere is a harmful pollutant FALSE 2. For determining the Ozone Depletion Potential __________ having been assigned a factor of 1 CFC-11 3. Ozone layer absorbs and scatters __________ form the sun Ultraviolet light 4. T/F R-134 is a chlorine-free refrigerant TRUE 5. a refillable refrigerant cylinder must not be filled above _________ of its full capacity 80% 6. T/F Est...

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 - correct 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 l...

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 and H...