Question

Give explaination :1. One should breath by nose and never by mouth.
2. Hands must be washed before eating food.
3. Eating places must be kept free of flies.

Answer 1

a. one should Breathe by nose not by mouth as we have some hair like structures in our nose to help us not to let the dust particles inside our body
b. hands must be washed before eating food because by not washing our hands our hands we will let many harmful germs inside our body
c. as flies sit on many unhygienic places and then they will carry the germs and thenvsit on a food and make it polluted or non germ free so we could get ill or unhealthy so eating places must be kept free of flies

Answer 2

1. One should breath by nose and never by mouth because nose contains hairs as well as mucus membrane which stops the dust particles and germs from entering into the respiratory system where as if we breath through mouth then the dust particles directly enter into the respiratory system which make us ill.

2. Hands must be washed before eating food because to eradicate the germs enter into our mouth which can cause illness and infection.

3. Eating places must be kept free of flies because flies serve as a carrier organism to many harmful, disease causing pathogens.