NCERT Important Questions Class 9 Science biology Chapter 13
Important NCERT Extra Questions
Chapter 13 Why do We Fall ill
NCERT Book Extra Questions for Session 2022-2023
CBSE Board and UP Board Others state Board
Fill in the blanks: The two important contributory causes of diseases are ……………… and make up.
Share
Fill in the blanks: The two important contributory causes of diseases are Under nourishment, and make up genetc