Even with a functioning ozone layer, and magnetosphere.
The thing with UV light though is that it also kills surface bacteria and is involved in vitamin D production. It's very like minerals in that way. Not enough kills you, but it's easy to go from too little to way too much.
The thing with UV light though is that it also kills surface bacteria and is involved in vitamin D production. It's very like minerals in that way. Not enough kills you, but it's easy to go from too little to way too much.