Question

if the breathing rate of children is different from that of adults

Answer 1

because the rate increases by the age as normal breathing is very significantly by age the rate first of child till 8 to 12 and adult 18 to 30
hope it helps

Answer 2

hey mate,
here is your answer,

Yeah, the breathing rate of children is different from that of adults...
It is becoming of the different requirements, of the people of different age groups,
of oxygen...This requirement is fulfilled by alteration in breathing rate of different age grouped people...

hope it helps☺☺