These then react with the ozone molecules, resulting in their removal. CFCs have a lifetime in the atmosphere of about 20 to 100 years, and consequently one free chlorine atom from a CFC molecule can do a lot of damage, destroying ozone molecules for a long time.
exists and is an alternate of . In the northern hemisphere of Earth, Fall begins on the Autumnal equinox (22-23 September) (in Persian calender it will begin at the first day of Mehr) and ends on the Winter solstice (21-22 December). In the southern hemisphere of Earth, Fall begins on the Autumnal equinox (20-21 March) and ends on the Winter solstice (20-21 June).
As you await the start of the season, here are 10 facts about fall: British people are more likely to call it autumn, according to Grammarist. Fall, mostly used in the United States, is an abbreviation of the term fall of the leaf.. The season will last until Dec. 21 at 5:44 a.m. EST, at which point winter will begin.