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.
1 Your chances of being struck by lightning are estimated to be 1 in 600,000 but could be reduced by following safety rules. 2  Most lightning deaths and injuries occur when people are caught outdoors. 3  Most lightning casualties occur in the summer months and during the afternoon and early evening. Most lightning occurs within the cloud or between the cloud and ground. 2  Your chances of being struck by lightning are estimated to be 1 in 600,000 but could be reduced by following safety rules.