Why is Lois in the superman cartoon series (all of them) a reporter when in the tv show shes not the reporter?

Why is lois lane in the superman cartoon series (all of them) a reporter when in the tv show(smallville) shes not the reporter her friend is?
(i know the cartoon is right) ,
But Why Did They Change this in smallville?

thank you in advance
Update: does cloe die? because that would tie in with the comic and cartoon.

If u can answers both questions much appriecated(...)
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