Case study Questions on Class 9 Science Chapter 13 are very important to solve for your exam. Class 9 Science Chapter 13 Case Study Questions have been prepared for the latest exam pattern. You can check your knowledge by solving case study-based questions for Class 9 Science Chapter 13 Why Do We Fall ill?
In CBSE Class 9 Science Paper, Students will have to answer some questions based on Assertion and Reason. There will be a few questions based on case studies and passage-based as well. In that, a paragraph will be given, and then the MCQ questions based on it will be asked.
Why Do We Fall ill Case Study Questions With answers
Here, we have provided case-based/passage-based questions for Class 9 Science Chapter 13 Why Do We Fall ill?
Case Study/Passage Based Questions
Refer to the given figure and answer the following questions
Disease which can be transmitted by mode E is
(a) rabies (b) typhoid
(c) dengue (d) tuberculosis.
Answer: (c) dengue
Read the following statement and select the correct statements.
(i) Mode D is the common method of transmission of diarrhea.
(ii) Both modes A and B are responsible for the transmission of the AIDS virus.
(iii) Hepatitis B is spread by mode B only.
(iv) Rabies is transmitted by mode F.
(a) (ii) and (iii) (b) (i), (ii) and (iii)
(c) (i) and (iv) (d) (iii) and (iv)
Answer: (c) (i) and (iv)
Diseases that are transmitted by modes __ are called vector-borne diseases.
(a) B, C and D (b) A and B
(c) C and D (d) E and F
Answer: (d) E and F
Which one of the following diseases is not transmitted by mode E?
(a) Brain fever (b) Malaria
(c) Typhoid (d) Dengue
Answer: (c) Typhoid
Case Study/Passage Based Questions
X and Y are communicable diseases where X can spread from an infected person to a healthy person by direct contact between them whereas Y can spread from an infected person to a healthy person through some intermediate agents.
Which of the following pathogen cannot be responsible for causing X?
(a) Streptococcus pneumonia
(b) Ascaris lumbricoides
(c) Plasmodium vivax
(d) All of these.
Answer: (d) All of these.
Which one of the following is an example of ‘X’?
(a) Filariasis (b) Leprosy
(c) Cholera (d) Typhoid
Answer: (b) Leprosy
Which of the following is an example of disease ‘Y’?
(a) Pneumonia (b) Marasmus
(c) Pellagra (d) Goitre
Answer: (a) Pneumonia
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