Hi Danish! 

There are still plenty of options both in the science stream and outside of it which you can pursue.

You can either go for traditional Botany, Zoology degree or you can look into options which are becoming more promising by the day such as Microbiology, Biochemistry, Biotechnology, Genetics, and Biomedics. 

Since your marks in English are better than the rest, I would suggest you to analyze what you like and if you feel that it is the subject you like, you can get a degree in it.

Hope you make the correct choice!