yes because I've done it before with my mom and my Friend in the car. First i yawned then my mom because i was sitting in the front seat, then my Friend yawned so yes yawning is contagious.
yes Smallpox is very Contageous.
no
no
no
if rude and yawning are defined as such i don't see any reason why the act of yawning be rude. yawning is physiologic. would urinating and defecating be rude also?
Yawning is not a disease.
it is a contageous fungus
Yes
The spelling of the yawning sound is "yawn."
Only amoungst the youth
No, they are both adjectives.
Yawning too much can prove to be fatal. My aunt didn't sleep for a week, kept yawning, and died. You're in trouble