Science or Commerce in 11th?
If you good in Science subjects, then taking up Science with PCB – physics, chemistry and biology – could be a good option. You can go for higher studies in either of these subjects for your graduation – like B.Sc (in physics, or chemistry or biology) or B.Sc in Environment, or even Biotechnology etc.,
Commerce is a good option, but you can switch to Commerce after 12th Science, so you have an option there.
PS: Most of the students aren’t aware what Commerce is all about? It could be advisable if one can get a few accounting books and go through it, and understand what it is all about. This will give you a fair idea what you will be dealing with in Commerce. Commerce has mainly accounting subjects and economics. You may get used books or may lend it from seniors in your vicinity.