Question

Why should we keep a handkerchief on the nose and mouth while sneezing?

Answer 1

Answer:

so that while sneezing the germ from your body do not get transmitted in the air causing disease to person sitting next to you or simply polluting the air

hope it helps

Answer 2

We should keep a handkerchief on the nose and mouth while sneezing because sneezing releases bacteria. This bacteria, if let out freely, may be harmful to people near us and eventually cause them to fall sick.

This is one of the major causes of the spread of communicable diseases. Therefore, to minimize the spread of viruses/pathogens, it is advisable to cover our nose and mouth while sneezing.