{"id":5053,"date":"2023-03-26T05:10:18","date_gmt":"2023-03-26T05:10:18","guid":{"rendered":"https:\/\/theexampillar.com\/ncert\/?p=5053"},"modified":"2023-03-28T06:16:19","modified_gmt":"2023-03-28T06:16:19","slug":"ncert-solutions-class-9-science-chapter-13-why-do-we-fall-ill","status":"publish","type":"post","link":"https:\/\/theexampillar.com\/ncert\/ncert-solutions-class-9-science-chapter-13-why-do-we-fall-ill\/","title":{"rendered":"NCERT Solutions Class 9 Science Chapter 13 Why Do We Fall Ill?"},"content":{"rendered":"<h2 style=\"text-align: center;\"><span style=\"color: #000000; font-family: georgia, palatino, serif;\">NCERT Solutions Class 9 Science\u00a0<\/span><\/h2>\n<p style=\"text-align: justify;\"><span style=\"color: #000000; font-family: georgia, palatino, serif;\">The NCERT Solutions in English Language for Class 9 Science <strong>Chapter &#8211; 13 (Why Do We Fall Ill?) <\/strong>has been provided here to help the students in solving the questions from this exercise.\u00a0<\/span><\/p>\n<h2 style=\"text-align: center;\"><span style=\"color: #000000; font-family: georgia, palatino, serif;\">Chapter &#8211; 13 (Why Do We Fall Ill?)\u00a0<\/span><\/h2>\n<p style=\"text-align: left;\"><span style=\"text-decoration: underline; font-size: 12pt;\"><strong><span style=\"color: #ff0000; text-decoration: underline;\">Questions <\/span><\/strong><\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"color: #000000;\"><strong>1. State any two conditions essential for good health.<br \/>\n<\/strong><strong>Answer &#8211;\u00a0<\/strong>Two conditions essential for good health are:<\/span><br \/>\n<span style=\"color: #000000;\">1. State of physical, mental and social well-being.<\/span><br \/>\n<span style=\"color: #000000;\">2. Better surroundings or environment.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"color: #000000;\"><strong>2. State any two conditions essential for being free of disease.<br \/>\n<\/strong><strong>Answer &#8211;\u00a0<\/strong>Two conditions essential for being free of disease are listed below:<\/span><br \/>\n<span style=\"color: #000000;\">1. Maintaining personal and public hygiene.<\/span><br \/>\n<span style=\"color: #000000;\">2. Clean environment and surroundings.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"color: #000000;\"><strong>3. Are the answers to the above questions necessarily the same or different? Why?<br \/>\n<\/strong><strong>Answer &#8211;\u00a0<\/strong>The answers are not same all the time. Because the meaning of health varies from person to person.\u00a0<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"color: #000000;\"><strong><span style=\"text-decoration: underline;\"><span style=\"color: #ff0000; font-size: 14pt; text-decoration: underline;\"><span style=\"font-size: 12pt;\"><span style=\"color: #ff0000; text-decoration: underline;\">Questions<\/span><\/span><\/span><\/span><\/strong><\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"color: #000000;\"><strong>1. List any three reasons why you would think that you are sick and ought to see a doctor. If only one of these symptoms were present, would you still go to the doctor? Why or why not?<br \/>\n<\/strong><\/span><span style=\"color: #000000;\"><strong>Answer &#8211;\u00a0<\/strong>The 3 reasons why one would think that he is sick are &#8211;<br \/>\n<\/span><span style=\"color: #000000;\">1. Headache<br \/>\n<\/span><span style=\"color: #000000;\">2. Cough<br \/>\n<\/span><span style=\"color: #000000;\">3. Loose motions<br \/>\n<\/span><span style=\"color: #000000;\">This indicates that there may be a disease but does not indicate what the disease is. So one would still visit the doctor for the treatment and to know the cause of above symptom.<br \/>\n<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"color: #000000;\"><strong>2. In which of the following case do you think the long-term effects on your health are likely to be most unpleasant?<\/strong><\/span><\/p>\n<ul style=\"text-align: justify;\">\n<li><span style=\"color: #000000;\"><strong>if you get jaundice<\/strong><\/span><\/li>\n<li><span style=\"color: #000000;\"><strong>if you get lice<\/strong><\/span><\/li>\n<li><span style=\"color: #000000;\"><strong>if you get acne. Why?<\/strong><\/span><\/li>\n<\/ul>\n<p style=\"text-align: justify;\"><span style=\"color: #000000;\"><strong>Answer &#8211; <\/strong>Lice and acne will not cause long lasting effects on our body. But in case of jaundice, there will be severe long lasting effects. For example:<br \/>\n(i) High temperature, headache and joint pains.<br \/>\n(ii) Feeling of nausea and vomiting.<br \/>\n(iii) Initiating rashes. The patient will suffer from poor health and will recover by taking complete bed rest for sometime.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"color: #000000;\"><strong><span style=\"text-decoration: underline;\"><span style=\"color: #ff0000; font-size: 14pt; text-decoration: underline;\"><span style=\"font-size: 12pt;\"><span style=\"color: #ff0000; text-decoration: underline;\">Questions<\/span><\/span><\/span><\/span><\/strong><\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"color: #000000;\"><strong>1. Why are we normally advised to take bland and nourishing food when we are sick?<br \/>\n<\/strong><strong>Answer &#8211;\u00a0<\/strong>In case of illness, the normal functions of the body get disturbed. So, a nourishing food is required which is easily digestible and contains all the nutrients. Therefore, bland and nourishing food is advised to take during sickness.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"color: #000000;\"><strong>2. What are the different means by which infectious diseases are spread?<br \/>\n<\/strong><strong>Answer &#8211;\u00a0<\/strong>The different means by which infectious diseases spread are:<\/span><\/p>\n<ul>\n<li style=\"text-align: justify;\"><span style=\"color: #000000;\"><strong>Through air &#8211; <\/strong>\u00a0They are also called air-borne diseases. The air carries bacteria, virus and the diseases that can be caused are: common cold, influenza, tuberculosis etc.<\/span><\/li>\n<li style=\"text-align: justify;\"><span style=\"color: #000000;\"><strong>Through food and water &#8211; <\/strong>When one eats drinks contaminated food\/water, that contains bacteria, virus, worm etc. it can cause diseases like cholera, diarrhea, typhoid, amebiasis, hepatitis, gastroenteritis etc.<\/span><\/li>\n<li style=\"text-align: justify;\"><span style=\"color: #000000;\"><strong>Trough contact &#8211; <\/strong>Many diseases spread by contact of infected person with the healthy person, Example, fungal infections, skin diseases, scabies etc.<\/span><\/li>\n<li style=\"text-align: justify;\"><span style=\"color: #000000;\"><strong>By sexual contact &#8211; <\/strong>Many diseases can be transmitted, example, syphilis, AIDS.<\/span><\/li>\n<li style=\"text-align: justify;\"><span style=\"color: #000000;\"><strong>By body fluids &#8211; <\/strong>Fluids like blood, semen, mother&#8217;s milk, when infected, can also cause diseases. Example, AIDS.<\/span><\/li>\n<li style=\"text-align: justify;\"><span style=\"color: #000000;\"><strong>Vectors &#8211; <\/strong>The organism that spreads a disease by carrying pathogens from one place to another is called vector. Example, mosquitoes are vectors that carry pathogens like protozoa.<\/span><\/li>\n<\/ul>\n<p style=\"text-align: justify;\"><span style=\"color: #000000;\"><strong>3. What precautions can you take in your school to reduce the incidence of infectious diseases?<br \/>\n<\/strong><strong>Answer &#8211;\u00a0<\/strong>To prevent the incidence of infectious diseases in school following precautions can be taken:<br \/>\n1. Avoid contact of students suffering from air borne diseases like common cold, cough, eye, flu, etc.<br \/>\n2. By checking the availability of clean drinking water in school.<br \/>\n3. Clean surroundings in school will not allow the growth and multiplication of vectors.<br \/>\n4. Starting childhood immunisation programe in schools.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"color: #000000;\"><strong>4. What is immunisation?<br \/>\n<\/strong><strong>Answer &#8211;\u00a0<\/strong>The method to boost our immune system with the help of vaccines that help the body to fight against infectious diseases is called immunisation.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"color: #000000;\"><strong>5. What are the immunisation programs available at the nearest health centre in your locality? Which of these diseases are the major health problems in your area?<br \/>\n<\/strong><strong>Answer &#8211;\u00a0<\/strong>The following immunisation programme is available at the nearest health centre in our locality:<br \/>\n1. Immunisation for infants \u2013 DPT, BCG, polio, measles and MMR.<br \/>\n2. For children \u2013 Typhoid, TT, DT, smallpox and TAB.<br \/>\n3. For pregnant women\u2014 TT and hepatitis B.<br \/>\nThe diseases like typhoid, polio, and measles are the major health problems in our locality.<\/span><\/p>\n<h3 style=\"text-align: center;\"><span style=\"text-decoration: underline;\"><span style=\"color: #ff0000; text-decoration: underline;\">Exercise<\/span><\/span><\/h3>\n<p style=\"text-align: justify;\"><span style=\"color: #000000;\"><strong>1. How many times did you fall ill in the last year? What were the illnesses?<br \/>\n(a). Think of one change you could make in your habits in order to avoid any of\/most of the above illnesses.<br \/>\n<\/strong><\/span><span style=\"color: #000000;\"><strong>(b). Think of one change you would wish for in your surroundings in order to avoid any of\/most of the above illnesses.<br \/>\n<\/strong><\/span><span style=\"color: #000000;\"><strong>Answer &#8211; <\/strong><\/span><span style=\"color: #000000;\">I had fallen ill twice in the past year. The illnesses were malaria and viral fever.<br \/>\n<strong>(a)<\/strong> Changes that I would like to make in my habits in order to avoid any more illnesses are as follows:<br \/>\n1. Having a bath daily.<br \/>\n2. Keeping the house, especially kitchen, clean in order to avoid creating a breeding place for the mosquitoes.<br \/>\n3. Having a proper balanced diet. <\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"color: #000000;\"><strong>(b)<\/strong> Changes that I would like to make in my surroundings in order to avoid any more illnesses are as follows:<br \/>\n1. To prevent accumulation of garbage in the building\/society.<br \/>\n2. To keep the society clean and dumping the waste in garbage bins provided.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"color: #000000;\"><strong>2. A doctor\/nurse\/health worker is exposed to more sick people than others in the community. Find out how she\/he avoids getting sick herself\/himself.<br \/>\n<\/strong><\/span><span style=\"color: #000000;\"><strong>Answer &#8211;\u00a0<\/strong>A doctor\/nurse\/health worker when exposed to sick people they keep their nose and mouth covered, take care of hygiene, wash hands with soap before drinking water or eating food. They use mask, gloves, etc to avoid the direct contact with the person suffering from infectious diseases.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"color: #000000;\"><strong>3. Conduct a survey in your neighbourhood to find out what the three most common diseases are. Suggest three steps that could be taken by your local authorities to bring down the incidence of these diseases.<br \/>\n<\/strong><\/span><span style=\"color: #000000;\"><strong>Answer &#8211;\u00a0<\/strong><\/span><span style=\"color: #000000;\">The following three are the most common diseases in any neighbourhood:<br \/>\n<\/span><span style=\"color: #000000;\">Cold and cough, loose motions, and malaria. <\/span><span style=\"color: #000000;\">Some of the preventive measures that can be taken are as follows:<br \/>\n<\/span><span style=\"color: #000000;\">(a) By drinking fresh, uncontaminated, and clean water.<br \/>\n<\/span><span style=\"color: #000000;\">(b) By maintaining hygienic sanitary conditions.<br \/>\n<\/span><span style=\"color: #000000;\">(c) By educating people about various preventive measures with the help of posters and pamphlets.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"color: #000000;\"><strong>4. A baby is not able to tell her caretakers that she is sick. What would help us to find out<br \/>\n<\/strong><\/span><span style=\"color: #000000;\"><strong>(a) that the baby is sick?<br \/>\n<\/strong><\/span><span style=\"color: #000000;\"><strong>(b) what is the sickness?<br \/>\n<\/strong><\/span><span style=\"color: #000000;\"><strong>Answer &#8211;<br \/>\n(a)\u00a0<\/strong>Symptoms that help us to find that baby is sick, are<br \/>\n(i) Continuous crying and restlessness of the child.<br \/>\n(ii) Improper intake of food and body temperature.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"color: #000000;\"><strong>(b)<\/strong> Kind of sickness can be known by certain organ-specific and tissue-specific symptoms e.g., yellowness of skin and eyes indicate the jaundice and hepatitis.\u00a0\u00a0<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"color: #000000;\"><strong>5. Under which of the following conditions is a person most likely to fall sick?<br \/>\n<\/strong><\/span><span style=\"color: #000000;\"><strong>(a) When she is recovering from malaria.<br \/>\n<\/strong><\/span><span style=\"color: #000000;\"><strong>(b) When she has recovered from malaria and is taking care of someone suffering from chickenpox.<br \/>\n<\/strong><\/span><span style=\"color: #000000;\"><strong>(c) When she is on a four-day fast after recovering from malaria and is taking care of someone suffering from chicken pox. Why?<br \/>\n<\/strong><\/span><span style=\"color: #000000;\"><strong>Answer &#8211; <\/strong>A person is most likely to fall sick in <strong>(c)<\/strong> condition because malaria attack has caused large scale destruction of her blood cells so she is weak and anemic. Then she is on a four-day fast so is not getting proper and sufficient food which further decreases the functioning of her immune system and lastly chickenpox is a communicable and contagious disease. \u00a0\u00a0<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"color: #000000;\"><strong>6. Under which of the following conditions are you most likely to fall sick?<br \/>\n<\/strong><\/span><span style=\"color: #000000;\"><strong>(a) When you are taking examinations.<br \/>\n<\/strong><\/span><span style=\"color: #000000;\"><strong>(b) When you have travelled by bus and train for two days.<br \/>\n<\/strong><\/span><span style=\"color: #000000;\"><strong>(c) When your friend is suffering from measles.<br \/>\nWhy?<br \/>\n<\/strong><\/span><span style=\"color: #000000;\"><strong>Answer &#8211; <\/strong>I will be most likely to fall sick when my friend is suffering from measles and I come in contact with him because measles is contagious disease and also spreads by droplet infection.<\/span><\/p>\n<p><a href=\"https:\/\/theexampillar.com\/ncert\/ncert-solutions-class-9-science\/\" target=\"_blank\" rel=\"noopener\"><b><i>Go Back To Chapters<\/i><\/b><\/a><\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>NCERT Solutions Class 9 Science\u00a0 The NCERT Solutions in English Language for Class 9 Science Chapter &#8211; 13 (Why Do We Fall Ill?) has been provided here to help the students in solving the questions from this exercise.\u00a0 Chapter &#8211; 13 (Why Do We Fall Ill?)\u00a0 Questions 1. State any two conditions essential for good [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[729],"tags":[730,756,757,733,5],"class_list":["post-5053","post","type-post","status-publish","format-standard","hentry","category-class-9-science","tag-class-9-ncert-solutions","tag-ncert-class-9-science-chapter-13-why-do-we-fall-ill","tag-ncert-solutions-class-9-science-chapter-13-in-english","tag-ncert-solutions-class-9-science-in-english","tag-ncert-solutions-in-english"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v22.9 (Yoast SEO v27.3) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>NCERT Solutions Class 9 Science Chapter 13 Why Do We Fall Ill? | TheExamPillar NCERT<\/title>\n<meta name=\"description\" content=\"NCERT Solutions Class 9 Science\u00a0The NCERT Solutions in English Language for Class 9 Science Chapter - 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