Although the concentration of the ozone in the ozone layer is very small, it is vitally important to life because it absorbs biologically harmful ultraviolet (UV) radiation coming from the sun. Extremely short or vacuum UV (10â100 nm) is screened out by nitrogen.
Lightning strikes reach the ground on Earth as much as 8 million times per day or 100 times per second, according to the National Severe Storms Laboratory. Out of all the lightning strikes in the world, the United States accounts for about 20 million of the total number of lightning strikes each year. Continue Reading.
Additional Lightning Information. An average of 49 people are killed each year by lightning, based on data from 1985 to 2014. July is the peak month for lightning fatalities, based on data from 2006 to 2013. Not surprisingly, June is the second highest month and August comes in third place.