faster breathing rate
deep(er) breathing/big(ger) breaths (Ⓐ heavy/harder/gasping)
exercise/more energy needed/faster respiration
more/a lot of oxygen required/used
less oxygen (available)
more carbon dioxide/lactic acid (in blood)
When climbers reach a certain alititude, they are given oxygen masks so they will not die from the lack of it because of the freezing cold altitude.
Air is thinner at higher altitudes. The higher the mountain, the less air for you to breathe.
oxygen tanks
No enough oxygen on high altitude.
difficulty in breathing
You die.
Mountain breezes happen at night, valley breezes happen during the day.
Mountain King happened in 1983.
Mountain of Faith happened in 2007.
Cursed Mountain happened in 2009.
The 29th May 1953 was the date when Mount Everest was climbed for the first time.
If they are unconscious and breathing, nothing will happen. If they are unconscious and not breathing, they will die.
There is carbon dioxide in the atmosphere. You have been breathing it in all your life.
Changes in breathing happen as a result of fluctuations in air quality, overall body condition, and direct control. These may occur slowly over time but will typically happen in a very short window.
Operation Mountain Fury happened in 2007.
Mountain Bike Rally happened in 1994.