Question

while playing a 4 year old boy was inhaling and exhaling forcefully in a polythene held close ​

Answer 1

Answer:

4 year boy can do this but even we can try this if we keep a polythene cover in front of a nose and exhale the polythene cover will move out and it was found that polythene bag am important tower which one is it is there that if we keep near a nose and inhale see the word inhale Sofia inhaling means the air will go inside so whatever in the surroundings it will be the polythene bag as it was near to a nose that will go inside.