What is relationship among the location of volcanues, earthquake epicenter, and mauntain ranges?

Volcanoes, earthquakes and mountain ranges are all results of the tectonic movement of the Earth.

When two plates collide and one does not completely give way and go under the other the crust is pushed up forming mountain ranges.

An earthquake is the shaking and vibration of the Earth's crust due to movement of the Earth's plates (plate tectonics).

And volcano is created when plates are pushed together or pulled apart.

So, the relationship between volcanoes, earthquakes and mountain ranges is their connection with the tectonic movement of the Earth.