Answer:
1. c
2.d
3.a
sry of these are wrong, the context is unclear. but i hope it helps
Answer:
the shake alert system is a remarkable technology years in the making it is the position to save tens of thousands of life in areas which high magnitude earthquake occur by providing a few seconds warning through time for people to take basis safety precautions
A primate city is the largest city in its country or region, disproportionately larger than any others in the urban hierarchy.
I think this best describes primitive city
Ural Mountains and Caucasus Mountains.
