Question

why are yaks are useful to people living in mountain regions​

Answer 1

Answer:

Yaks tend to live at high altitudes because of their thick coat and vulnerability to diseases. In fact, yaks normally cannot live below 10,000 ft above sea level. The lungs of yaks are usually large in order to absorb more oxygen at higher altitudes. Yaks can weigh up to 1,200 pounds (550 kg).

Answer 2

Answer:

A great deal of their time is spent grazing on mountain plains, eating grass, herbs and wild flowers. Yaks live at the highest altitude of any mammal. ... Yaks have firm, dense horns which they use to break through snow in order to get the plants that are buried underneath. They will also use their horns in defence. Yaks tend to live at high altitudes because of their thick coat and vulnerability to diseases. In fact, yaks normally cannot live below 10,000 ft above sea level. The lungs of yaks are usually large in order to absorb more oxygen at higher altitudes. Yaks can weigh up to 1,200 pounds (550 kg).

Hope it is helpful.