Adam...................story?

please reply if you hear that adam&eva..send to earth..and creat many child all was sister&brother &hear they married with themself &human society creat but it is againt of god science &god law because every thing of god equal with science &correct what this is mistake .i am waiting for reply but know these was another fact they didnont married sister &brother it has a secret story are any body can explain???if no let ..wait for explain..thanks