Answer:
All of the above
Explanation:
With growth of cities all of the above can happen.
Answer:
A country
Explanation:
Is that what you're asking?
Answer:
One thing they COULD do is have the St.Louis and Houston Stations both send out very high wave frequencies and figure out from there what the magnitude is and send it back to LA, but that might take a bit of time, depening on if power cables aren't down.