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.
From 1993 through 2010, Texas had 246 injuries and 57 deaths â 303 total reported lightning strikes, an average of about 18 per year. In 2009, 11 folks were injured in Texas. Add in the three who were killed and thatâs at least 13 people struck by lightning that year, not counting strikes that went unreported.