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
State any two conditions essential for good health.
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Two conditions essential for good health are
(i) better sanitation or clean surroundings, and
(ii) availability of sufficient and nutritious food.