Epa 608 - Core Study Guide Rated A+

What is the strongest evidence that HCFCs are in the stratosphere? A) Chemical reactions predict there should be HCFCs in the upper atmosphere B) measurement of chlorine in air samples from the lower atmosphere C) measurement of HCFCs and air samples from the stratosphere D) satellite measurements of light passing through the atmosphere {Ans: C) measurement of HCFCs and air samples from the stratosphere}The molecule found in CFCs and HCFCs that depletes O-Zone is: A) Fluorine B) Chlorine C) Hydrogen D) Carbon {Ans: B) Chlorine}Which of the following refrigerant is an HFO? A) R-410A B) R-22 C) R-1234ze D) R-134a {Ans: C) R-1234ze}Which of the following has the highest O-Zone depletion potential? A) CFCs B) HCFCs C) HFCs D) HFOs {Ans: A) CFCs}How does the global warming potential of R-410A compare to that of carbon dioxide? A) it is lower B) they are equal C) it is hundreds of times greater D) it is thousands of times greater {Ans: D) it is thousands of times greater}Which of the following gases is used as a baseline measurement for global warming potential? A) ammonia B) carbon dioxide C) CFC-12 D) propane {Ans: B) carbon dioxide}How did