i am nikunj and i am studying in 12th standard and i want 2 know which topics of biology , physics ,chemistry subjects are important ?

being a science student,you have to study all topics so that you can do well in the entrance exam.

Whatever topics you are not able to understand, are all important. Please realize that there is no short-cut to distinction. To have a broad base of knowledge, you cannot go through short-cuts. Study EVERYTHING, even if it takes you more hours of study as compared to your colleagues. However, those