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.
LÃ³pez 2003). The annual number of lightning. deaths has been compiled in the US since 1900, and in several other developed countries for. extensive but varying periods. However, there has. been little systematic collection of information on. lightning deaths in many regions of the world. Holle. and LÃ³pez (2003) made an assessment of the. worldwide impact of lightning, and concluded that. 24,000 deaths and 240,000 injuries occur per year.