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NCERT Exemplar Solutions Class 9 Science Solutions for Why Do We Fall ill ? - Exercise in Chapter 13 - Why Do We Fall ill ?

Question 30 Why Do We Fall ill ? - Exercise

Explain giving reasons

(a) A balanced diet is necessary for maintaining a healthy body.

(b) The health of an organism depends upon the surrounding environmental conditions.

(c) Our surrounding area should be free of stagnant water.

(d) Social harmony and good economic conditions are necessary for good health

Answer:

(a) Food is essential for the growth and normal function of our body. A balanced diet is the one that consists of all the essential nutrients in an appropriate quantity. The balanced diet provided an appropriate amount of biomolecules such as carbohydrates, lipids, proteins, vitamins, and minerals which are very essential for our growth and body functioning. Imbalance in the diet leads to many physical and physiological diseases.

(b) Health is defined as physical, mental, and social well-being and comfort. Health is always dependent on our surroundings and if our environment is unhygienic we get the disease. We get cold and cough in the rainy and winter season. Our environment conditions are very important for being healthy.

(c) Stagnant water is the breeding environment for mosquitos. Mosquitos spread many diseases like Malaria, Dengue, Elephantiasis, chikungunya, etc. In order to stop the spread of these diseases our surroundings should be free of stagnant water.

(d) Human beings are social organisms. We live in different localities and environments. In order to lead a healthy life, we have to keep our environment clean. We need good hygienic food to lead a healthy life which depends on our earnings. We often encounter diseases, in order to get the treatment we need the money and our economic status should be strong to afford the treatments.

Video transcript
"hello everyone welcome to leader learning i'm guri your science tutor today's question is explain giving reasons first is a balanced diet is necessary for maintaining a healthy body the reason is balanced diet consists of essential nutrients which are required for growth and development of the body so this is why the balance diet is necessary for maintaining a healthy body this is for the a part now for b part the health of an organism depends upon the surrounding environmental conditions yes it is totally right that health of an organism is dependent upon the surroundings of the environmental conditions if the surroundings are unhygienic then we may get some diseases but if the surroundings are clean and healthy then our bodies will not suffer from any disease and will live a healthy life for the sea part our surrounding area should be free of stagnant water yes it should be free of stagnant water as stagnant water is a place for breeding mosquitoes and this mosquito can cause us dengue malaria brain fever and other diseases so if we want to stop the spread of such diseases we should keep the surroundings free from stagnant water next is your d part that is social harmony and good economic conditions are necessary for good health yes we live in different localities and environments if we want to live a healthy life if we want to live a healthy life then we have to keep our environment clean and for this we also need good hygienic food which can make our living healthy and good hygienic food is only affordable if we have a good economic condition so social harmony and good harmon good economic conditions are necessary for a good health for more such videos please subscribe leader learning and for any doubts drop a comment thank you"
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