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Chapter 13 Class 9 - Why Do We Fall Ill

Let's look at Chapter 13 Class 9 Science of the NCERT Book - Why do we Fall Ill.


In the third part of the chapter, Why do we fall ill, you are going to learn about the human body and why it falls sick

There are various reasons due to which the health of a body can be compromised and you are going to learn about them with the help of concepts, NCERT questions and Extra Questions prepared by the experts at Teachoo.

Firstly, you will look at the types and causes of diseases. Depending upon its cause, diseases are further categorised. These can be -

  • Acute Diseases
  • Chronic Diseases
  • Infectious Diseases
  • Non - Infectious Diseases

Lastly, you will also be taught about the ways in which these diseases can be prevented and treated.


At Teachoo, we have provided you Notes, NCERT Solutions, Teachoo Questions (with answers). In short, everything you need to score good marks in this chapter!


NCERT Questions

Questions from inside the book

Teachoo Questions