Which of the following is not a source of ozone emission in the atmosphere?
Correct answer: A. Refrigerators
- A. Refrigerators
- B. Xerox machines
- C. Dermatological photo-therapy equipments
- D. High voltage electrical equipments
Explanation
Xerographic machines, some ultraviolet phototherapy equipment, and high-voltage electrical devices can generate ozone. Refrigerators are associated with ozone-depleting refrigerants such as CFCs, but they are not normally a direct source of ozone emission.
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