Answer:
Due to sloppy geography and lower air pressure.
Step-by-step explanation:
Walking on the sloppy and low pressure are the two physiological responses that increases the amount of oxygen given to her tissues. Walking on the steep and sloppy region requires high amount of energy so for that energy the body needs more and quick oxygen in order to breakdown of glucose for the release of energy that can be used for walking while on the other hand, the low atmospheric pressure have low amount of oxygen in the air so the person needs more oxygen for its breathing so the person breathe air fastly to supply optimum amount of oxygen to the body.