Question

Mountaineers experience low oxygen levels at high altitudes. What condition do they face?

• A. Hypoxia because of the low level of oxygen in the air.
• B. Asphyxiation because of the high level of oxygen in the air.
• C. Asphyxiation because of the low level of oxygen in the air.
• D. Hypoxia because of the high level of oxygen in the air.

Answer 1

The correct option is A Hypoxia because of the low level of oxygen in the air.

At high altitudes, oxygen molecules are further apart because there is less pressure to ‘push’ them together. This means that there are fewer oxygen molecules in the same volume of air as we go up. Human body encounters the conditions of hypoxia due to lower molecules of oxygen.