Great Let me start with the first question,
Jahan tak BSc ka sawal hai abhi bhi isey technology se thora alag rakha jata hai,,,(although the subject you choosing/studying may contain the name Technology Viz; biotechnology, bio-engineering, information technology etc), mere kahane ka matlab hai BSc ko pure science ki ksreni main hi rakha jata hai,,,lekin agar pure science ko advance level (MS, PhD) tak pada jaye to wohi applied banke samne aati hai....kisi bhi technology ka foundation fundamental science hi hoti hai....to agar broader way main dekha jaye to sabhi subjects ka apne level pe ek achcha vawishya hota hai,,,dusra ispe bhi depend karta hai ki aapka aim aage kya hai...kya aap just BSc ke immediate baad job ki baat kar rahe hain to bahut saare subjects hain jinmain different universities BSc karati hain ,,,jaise,,Mathematical Science,,Anthropology,,,Bio-Chemistry,,,Biomedical Sciences,,,Botany,,Chemistry,,Computer Science,,,Electronics,,Geology
Home Science,,Information Technology,,,Mathematics,,Microbiology,,Nursing,,Occupational Therapy,,,Physical Therapy,,Physics,,Physiotherapy,,,Polymer Science,,Prosthetic and Orthrotics,,,Statistics,,,Zoology,,Agro-Chemical and Pest Control,,,Analytical Methods in Chem & Bio-Chem,,Applied Life Sciences (Sericulture),,,Applied Physical Sciences (Computer Science),,,Applied Physical Sciences (Electronics),,,,Applied Physical Sciences (Environmental Science),,,Applied Physical Sciences (Industrial Chemistry),,Life Sciences
Physical Sciences,,Programme Physical Sciences,
so agar just BSc ke baad job ki planning ho to i would prefer to go for applied sciences ,,jaise ki maine list main mention kiye hain...however agar aapko more options open rakhne hain ,,jisse ki BSC ke baad decide kiya jaa sake ki kis field main jana hai to I would suggest one go for dynamic subjects like Physics,,chemistry...Maths...Computer Science etc.
Ab aapke agle question pe aata hu ki kya IT, ya Bio-chemistry jaise subject PCM ya ZBC se behtar hain....waise to comparison difficult hai...still kewal BSC in subjects main karne matr se koi big achievement mile ye kahna ekdam jaldbaji hogi,,,lekin jaisa ki maine kaha PCM se bahut saare options open hote hain...per ZBC ya fir in technology courses se limited option available hain...so agar aap perfect hain kis bhi ek subject main to pakka se safalta hai .... biochemistry ya biotechnology jaise subjects main Maters to kam se kam hona hi behatar hai.....baaki plz aap muzhey batayein ki kya main sahi se reply de paya hu aapke questions ka...