Question

class 9 ncert science chapter why do we fall ill book
solutions​

Answer 1

Explanation:

this the answer for your question

Answer 2

Explanation:

. State any two conditions essential for good health.

Solution:

Good economic condition and earnings

Social environment

2. State any two conditions essential for being free of disease.

Solution:

Living in a healthy and hygienic environment.

Getting vaccination against infectious disease whenever required.