He ozone Study guides, Class notes & Summaries

CFC's and the ozone layer Questions and Answers 2023 CFCs are organic molecules that contain 3 elements: carbon, chlorine and fluorine CFCs are both non toxic or flammable and start off unreactive In water CFCs are insoluble CFCs have a low boiling point CFCs were used in refrigerators, air conditioning systems, propellants and aerosol spray cans In 1974 discovered the truth behind CFCs which was that the chlorine inside CFCs helped destroy ozone ...

C6e: Depletion of the ozone layer Questions and Answers 2023 Explain why the use of CFCs has been banned in the UK • society has agreed with scientists' views that CFCs deplete the ozone layer. Describe and explain how scientists' attitude to CFCs has changed: • initial enthusiasm for the use of CFCs based upon their inertness • later discovery of ozone depletion and link to presence of CFCs • acceptance by scientists and the rest of the world community that the use o...

EPA 609 Questions and Answers Already Passed Lifetime of CFCs is believed to range from _____ years? 2 to 100 For determining the Ozone Depletion Potential ________ having been assigned a factor of 1? CFC-11 Ester-based synthetic oils can be mixed with other oils? False Since ________, it is no longer legal for CFCs to be manufactured or imported into the United States? January 1, 1996 Since _____, it is illegal to vent substitutes for CFC and HCFC refrigerants? November 15, 1995 Ozone at g...

EPA 609 Practice Questions With Verified Answers 100% R-134a is a chlorine-free refrigerant - ANSWER True Ozone layer absorbs and scatters ________ from the sun - ANSWER ultraviolet light For determining the Ozone Depletion Potential ________ having been assigned a factor of 1 - ANSWER CFC-11 A refillable refrigerant cylinder must not be filled above ______ of its full capacity. - ANSWER 80% Ozone at ground level and at Stratosphere is a harmful pollutant - ANSWER False Eac...

A client comes to the health department needing a flu vaccine for work. What allergy is a contraindication to receiving a flu vaccination? - Egg A client reports to his health care provider that he works in a packing plant. What secondary prevention method should the provider do with the client at this appointment? - Screen for s/s of carpal tunnel syndrome A client reports to the healthcare provider that he drinks a 6 pack of beer daily. The provider should educate the patient that he is ...

LEG2601 Legal Aspects of Environmental Management 100 Marks 24 Hours THIS PAPER CONSISTS OF 6 (SIX) PAGES – INCLUDING INSTRUCTIONS. Honesty Declaration: In writing and submitting this paper you affirm that: 1. You understand what academic dishonesty entails and are aware of UNISA’s policies in this regard. 2. You have not allowed, and will not allow, anyone to copy your work with the intention of passing it off as his or her own work. 3. You did not make use of another ...

REHS Questions and Verified Answers| 100% Correct |Grade A (Latest 2023/ 2024 Update) Q: The fresh water supply line to the pool must: a. have a direct solid connection to the public water supply b. fill to the pool through an approved air gap c. have an approved pump hooked to the public water supply line to suck the water to the pool for fast fills d. none of the above Answer: fill to the pool through an approved air gap Q: In large pools with outlets more than 5 feet fro...

PRAXIS II ELEMENTARY EDUCATION (5001) EXAM 2024 The attack on Pearl Harbor - correct answer What was a contributing factor to the United States entering World War II? The Battle of Fort Sumter - correct answer What event is recognized as the beginning of the American Civil War? The death of Cleopatra - correct answer What contributed most to the fall of the ancient Egyptians? The development of republican democracy - correct answer What is a lasting influence ancient Romans had on m...

Western Governors University CARE OF THE ELDERLY C475 Care of The Older Adult TEST BANK A negative attitude towards aging and the aged is called: A. geriatrics B. racism C. ageism D. ethnocentrism Answer: Which of the following is not considered a core competency for nurses caring for older adults? A. Analyze the impact of an aging society on the health care system B. Obtain certification in gerontological nursing C. Prevent or reduce common risk factors that contribute to functional decline D. ...

AQA AS Organic Chemistry exam questions with 100% correct answers Define the term 'empirical formula' - ANSWERS A formula that gives the simplist whole number ration of atoms of each element in a compound Define the term 'molecular formula' - ANSWERS A way of representing molecules that shows the actual number of atoms of each element in a molecule Define the term 'General formula' - ANSWERS An algebraic formula that can describe any member of a family of compounds Define the t...