Hourly rates fall anywhere between $100 and $200 per hour. Because small appliance repair can take less than an hour to complete, you may be charged a flat fee for repair services such as defrosting a fridge, changing connectors, etc.
A severe depletion of ozone in a region of the ozone layer, particularly over Antarctica and over the Arctic. The depletion is caused by the destruction of ozone by CFCs and by other compounds, such as carbon tetrachloride (CCl4) and carbon tetrafluoride (CF4). ozone hole in Culture Expand.
Ozone layer is present in the stratospheric stage of the atmosphere. If the ozone layer in the stratosphere is brought as it is on to the surface of the earth then it will form one inch thick layer. Depletion of ozone layer has become a major issue recently.