CBSE Class 10 Science marks distribution 2026 explained with chapter-wise weightage for Biology, Chemistry, and Physics. Know high-weight chapters and smart exam preparation tips for CBSE Board Exam ...

ICSE Class 10 Biology Pre Board Question Paper 2026 helps students practice important questions. Download the Biology pre board question paper PDF here for effective revision and high marks.

Introduction to properties of life and cells leading to genetic and biological diversity. Survey of biological diversity emphasizing variation leading to natural selection; introduction to ecological ...