If there is no lightning, human beings will lose a hard-working cleaner. When lightning works, part of the oxygen in the atmosphere is excited into ozone. The thin ozone not only does not smell, but also absorbs most of the cosmic rays, so as to protect the organisms on the earth's surface from excessive ultraviolet radiation. The high temperature generated in the process of lightning can kill more than 90% of the bacteria and microorganisms in the atmosphere, This makes the air more pure, fresh and pleasant.
paragraph mainly introduces that:
The protective effect of lightning on the earth