Question

why is that wearing of face mask is mandatory in this time of pandemic caused by covid 19​

Answer 1

Answer:

because mask prevents the corana virus molecules or small bacterias to enter in our body and infect us.

Explanation:

hope it helps

Answer 2

Explanation:

People should NOT wear masks when exercising, as masks may reduce the ability to breathe comfortably. Sweat can make the mask become wet more quickly which makes it difficult to breathe and promotes the growth of microorganisms.