Question

Name the appropriate unit of length that can be used to represent the following: The thickness of the face masks used by you to prevent from air-borne diseases​

Answer 1

Hand washing and maintaining social distance are the main measures recommended by the World Health Organization (WHO) to avoid contracting COVID-19. Unfortunately, these measured do not prevent infection by inhalation of small droplets exhaled by an infected person that can travel distance of meters or tens of meters in the air and carry their viral content. Science explains the mechanisms of such transport