CH-359
Ozone layer
Chemistry · Secondary 3 · Easy · Ozone layer
A country plans one main measure to slow down depletion of the ozone layer. Which action would be MOST effective?
- Phasing out old air-conditioners that still use CFCs as coolants
- Reducing carbon dioxide emissions from power stations
- Using unleaded petrol in all motor vehicles
- Removing sulfur dioxide from factory waste gases
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