🔴WHY DO WE FALL ILL?🔴L-1🔴FOR-9TH🔴

🔴🔴FOR-9TH🔴🔴
CHAP--🔴WHY DO WE FALL ILL?🔴
& 🔴CUTTED SYLLABUS OF SCIENCE-2021-22🔴

🔴WHYILL?🔴L-1🔴FOR-9TH🔴