Give reasons for the following : (a) At higher altitudes, people suffer from a disease called anoxia. In this disease, they become weak and cannot think clearly.

At higher altitudes, people suffer from a disease called anoxia.which is actually the decrease in the concentration of oxygen and because of low concentration people becomes weak and think clearly
According to HENRYS law the vapour pressure of a gas is directly proportional to its mile and since the total mole decreases the levelof oxygen decreases and we experience anoxia