viruses
microbes are infectious and act as a vector for spreading diseases of various types....they can spoil food also.
we can stop spreading by giving tt to a child
poo head
They do not stop it but the mucus and motion of the cillia remove said microbes and dust should they get into the lungs.
whashing offten
It would not stop spreading in space, because of lack of gravity and wind resistance.
one way is the nose ,the hair and the mucous in a person's noes prevents microbes from getting in by trapping them.
with your tears
Make peace.
your stomach acids fight it off and they kill the microbes. in a way this is good and bad because if it kills the bad microbes then it kills the good microbes in our body aswell!
if is a bubble lily pad you pop the bubble on its stem that will keep them from spreading :)