Question

the two opening of the pharynx 1 leading to trachea and the other leading to oesophagus lie very close to each other .Yet the food we solve normal does not enter into our trachea .Y

Answer 1

because of epiglottis
you cannot take breath while eating
hope it will help

Answer 2

because there is a small little flap like structure which is called epiglottis this guard the opening of the trachea, so that food does not enter there.

I hope this will help u