You are at question (MCQ) number 1 and Test Number 1 of Chemistry: All topics. To deal with Chemistry questions, you must take lesson on the subject. In case of science and Art subjects revise your text books and in case of general aptitude topics take lessons from the topic page.
The question: Which of the following air pollutants is more dangerous for ozone layer?
.... with options: CFC
, CO2
, CO
, Oxides of nitrogen
can be solved with the concepts and understanding of Chemistry.
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