Lungs appear collapsed in the fetus because they are filled with amniotic fluid and they have never been inflated with air yet.
It would be convection because it isnt having any physical collision which rules out conduction and it is going through mid air which rules out evaporation and radiation
45 feet
there are 3 feet in a meter
so we can find how many feet are in 15 meters by multiplying
15 x 3 = 45
