This is a correct answer to the following question about Ozone depletion. Yes or no?
Answer: Ozone depletion describes two distinct but related phenomena observed since the late 1970s: a steady decline of about 4% per decade in the total volume of ozone in Earth 's stratosphere (the ozone layer ), and a much larger springtime decrease in stratospheric ozone over Earth's polar regions.
Question: what causes destruction of the ozone layer
