What would happen to life on earth if the ozone layer was not present

The ozone layer absorbs most of the ultraviolet radiation that is evil for human beings, then, if there were no, all UV radiation would reach the surface of the earth, so all burned or some skin disease die .
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Idon't know. the question you are trying to ask doesn't make sense.

Answer islamic scholars made advancements in technology, literature, philosophy, mathematics, astronomy, and the arts during this time period;