When a group of students from an institution went for an excursion to a place which is at an altitude of more than 3500 km , they experienced nausea, fatigue and heart palpitations. Predict the cause for this condition and how their bodies then get acclimatise?

At high altitudes atmospheric pressure is low, so body does not get enough of oxygen.

The body acclimatizes by –

Increasing production of RBC

Decreasing binding capacity of RBC

Increasing rate of breathing.