Question

why do we fall ill class 9th notes​

Answer 1

Answer:

It may be caused due to the attack of pathogens (virus, bacteria), lack of nutritious diet/balanced diet and lack of public health services. The disease which lasts for only a short period of time is called Acute Disease. For example: Influenza (Flu), Common cold, etc. For example: TB, Cancer, etc.

Answer 2

Answer:

We fall ill due to the attack of pathogens (virus, bacteria), lack of nutritious diet/balanced diet and lack of public health services.

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