Hello,
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Both the fields are very good when compared. It depends on your interest now whether you are interested In biological world or want to go for science world. Biotech Teaches you all about the biological processes, living, dead particles. Where forensic science teaches you, investigation, finding out the mist behind a thing. Coming to the job opportunities, forensic science has a lot of demand and high in competition when compared to biotech. You can be hired easily by biotech when compared to forensic science. But when coming to packages, both the fields provide a good package of salaries