Hello,
You can download model question paper of Biology of Bihar board from the link below
https://school.careers360.com/articles/bihar-board-12th-model-paper
Along, with biology form this link you can also download question papers of all the others subjects as well.
Also, you can check the link below for more information regarding BSEB class 12th
https://school.careers360.com/exams/bihar-board-12th
Good luck!
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