Question

why do we need to breathe faster at top of mountain​

Answer 1

Answer:

we need to do so because ,there is in sufficient oxygen .As we know going at high altitude decrease the concentration of air .So, some mountaineers carry oxygen cylinder.

Answer 2

At high altitude, air pressure will be low, so that air density will be low.

So the amount of air we get in one breath will be low.

Hence we need to breathe faster to get required amount of air.