class9 why do we fall ill solved questions
WHY DO WE FALL ILL CLASS-IX STUDY MATERIAL 1. Define health. Ans. Health is defined as the state of complete physical, mental and social well being. 2. What is disease? Ans. Disease is a departure from normal health through structural or functional disorder of the body. 3. What is the most important factor that keeps us healthy? Ans. Our social environment is an important factor in our individual health. 4. List any two conditions essential for good health. Ans. Conditions essential for good health are: i. to have a balanced diet and varied diet. ii. avoid wrong habits like drinking alcohol and drug consumption. 5. List any two conditions essential for being free of disease. Ans. Conditions essential for being free of disease are: i. maintain personal hygeine. ii. keep environment clean and hygiene. 6. Give examples of diseases which are caused by intrinsic sources and extrinsic sources. Ans. Diseases caused by intrinsic sources: Hea...