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.
Why is the ozone layer depleting but increasing above the earth surface? Ozone is decayed by compounds high in the atmosphere, most of which are Man-sourced (even from nearly 100 years ago). Ozone is produced by NOx (in exhaust from infernal comb â¦ ustion engines), VOC (in exhaust, released during refueling and by Nature), violet and more energetic light, and oxygen present in the atmopshere.