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13. Why Do We Fall ill – Class 9 Science | NCERT Chapter-wise Important Questions and Answers (CBSE)

Chapter 13: Why Do We Fall ill – Class 9 Science NCERT | Chapterwise Important Questions and Answers (CBSE)

Chapter 13: Why Do We Fall ill

1. State any two conditions essential for good health.

Answer: Two essential conditions for good health are a balanced and nutritious diet and regular physical exercise. A balanced diet provides the necessary nutrients, vitamins, and minerals to support bodily functions, while regular exercise helps maintain cardiovascular fitness, muscle strength, and overall well-being.

2. State any two conditions essential for being free of disease.

Answer: Two conditions essential for being free of disease are a strong immune system and effective hygiene practices. A strong immune system helps the body fight off infections and diseases, while effective hygiene practices, such as regular handwashing and proper sanitation, minimize the risk of spreading or contracting diseases.

3. Are the answers to the above questions necessarily the same or different? Why?

Answer: The answers to the above questions are similar but not necessarily the same. Good health and being free of disease are related concepts, but they are not identical. While proper nutrition and regular physical activity contribute to good health, they may not guarantee freedom from all diseases. On the other hand, a strong immune system and effective hygiene practices play a crucial role in preventing diseases but may not encompass all aspects of overall good health. Therefore, while there is overlap between the two conditions, they are not entirely synonymous.


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