Question

the highest regions are in
​

Answer 1

Answer:

Tibet is the highest region in the world, with an average altitude of 4000 meters. There have been reports of up to a 500-fold variation in the incidence of OSCC between low-risk and high-risk regions across the globe, with China being one of the highest risk regions in the world.

hope this answers helps u

hope this answers helps upls mark me as brainleist