Ozone depletion - Study guides, Revision notes & Summaries

ODP test Questions and Answers 2023 Chlorofluorocarbon (CFC) refrigerants consist of: Chlorine, Fluorine, Carbon What causes a CFC molecule to break down once it reaches the upper atmosphere? Ultraviolet light The Ozone layer: Reduces ultraviolet radiation. Hydrochlorofluorocarbon (HCFC) refrigerants consists of: Hydrogen, Chlorine, Fluorine, Carbon. Which of the following refrigerants causes the least amount of damage to the ozone layer? R-134a Are there...

LEG2601 Assignment 2 (QUIZ COMPLETE ANSWERS) Semester 1 2024 - DUE 12 April 2024 100% TRUSTED workings, explanations and solutions. 0.6.7..1.7.1..1.7.3.9 for assistance....... Question 1 Complete Marked out of 1.00 Question 2 Complete Marked out of 1.00 QUIZ … is an example of a heritage resource protected under the National Heritage Resources Act 25 of 1999. a. Great-grandmother’s vase. b. A collection of South African 1 cent coins (no longer in circulation). c. Any gravesite...

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 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...

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...

PUB2606 EXAM PACK. LEG Q & A Assignment 2018 1 ASSIGNMENT 01: COMMENTARY Question 1 What is the role of international and regional conventions (treaties) in South African environmental law? [10] Suggested answer  Environmental deterioration or damage do not only affect individual states but also the entire world. In other words it is a cross border issue and not limited to man-made borders.  It includes, for example, ozone depletion, global warming, loss of biodiversity, air an...

CFC's and Ozone Depletion Questions and Answers 2023 What is the full name for "CFCs"? Chlorofluorocarbon Why were CFCs developed and how were they used? Humans synthesized the production of CFCs because they are nontoxic, nonflammable, cheap and widely available. They revolutionized air conditioning making it readily accessible for homes, offices, schools, cars etc. CFC technology transformed the economy as it spurred the growth of humid/hot countries. Chemical Formula for C...

Test Bank for Environmental Science, 17e 17th Edition by G. Tyler Miller, Scott Spoolman, Danielle Andrews-Brown. Full Chapters (Chapter 1 to 17) are included with answers. Part 1. HUMANS AND SUSTAINABILITY: AN OVERVIEW. 1. The Environment and Sustainability. Part II. ECOLOGY AND SUSTAINABILITY. 2. Science, Matter, Energy and Systems. 3. Ecosystems: What Are They and How Do They Work? 4. Biodiversity and Evolution. 5. Species Interactions, Ecological Succession and Population Control. ...

LEG2601 Assignment 2 (ANSWERS) Semester 1 2024 - DISTINCTION GUARANTEED. Answers, guidelines, workings and references..... .... Question 1 Complete Marked out of 1.00 Question 2 Complete Marked out of 1.00 QUIZ … is an example of a heritage resource protected under the National Heritage Resources Act 25 of 1999. a. Great-grandmother’s vase. b. A collection of South African 1 cent coins (no longer in circulation). c. Any gravesite. d. A building older than 60 years. A number...