1. Depletion Of The Ozone Layer
... CFCs from the lower atmosphere. Over time, the CFCs are driven into the stratosphere by winds. It typically takes seven to ten years for CFC molecules to rise through the lower atmosphere and reach the stratosphere.. The CFCs are stable that only exposure to strong UV radiation can break them down. When that happens, the CFC molecule releases atomic chlorine. One chlorine molecule can ... is that the ozone layer is being depleted faster than it can heal itself. Much research had gone into ways to help prevent depletion of the ozone layer. One method instituted was to ban the use of CFCs...
- Word Count: 2746
- Approx Pages: 11
- Grade Level: High School