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EPA 609 Practice Exam Questions With 100% Correct Answers.
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EPA 609 Practice Exam Questions With 100% Correct Answers. R-134a is a chlorine-free refrigerant - answerTrue Ozone layer absorbs and scatters ________ from the sun - answerultraviolet light For determining the Ozone Depletion Potential ________ having been assigned a factor of 1 - answerCFC-...
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