Question

new developments which are improving communication routes in the regions of high altitude.

Answer 1

Explanation:

In recent times, several new developments have taken place which are improving communication routes in the regions of high altitude. Now, we have motorable roads. Railway lines are also being laid through bridges, tunnels and caves. Means of communication such as telephones, satellite phones, mobile phones etc.

Answer 2

wiring,construction of roads on hills,construction of towers etc. are the developments .