It is difficult to “boil” eggs in water at the top of a high mountain because water boils there at a relatively low temperature. What is a simple, practical way of overcoming this difficult?

At the top of high mountain, the pressure of the atmosphere is low. So the boiling point of the water decreases. That is why it is difficult to boil eggs in water at the top of high mountain. To avoid these difficulties, we have to increase the boiling point of the water. For this we have to increase the pressure by using pressure cooker to boil egg at the top of the mountain.