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.
138 million ground strikes/year worldwide. Specialists consider that there are approximately 2,000 thunderstorms around the world producing about 44 flashes of lightning each second. Needless to say, there is about 138 million ground strikes/year worldwide. It is interesting to know the fact that about 78% of the lightning strikes occur in the tropics. Needless to say, on average, all over the world, lightning strikes approximately 100 times per second. This is definitely something.