Hurricane katrina brought devastation, homelessness, illness, and even death to the residents of new orleans. meteorologists, have been working with the most advanced satellite weather technology to ensure that another "katrina" situation will not happen anywhere in the united states.

what would be the most effective way to alert coastal residents that a hurricane was fast approaching?

a) newspapers
b) billboards and flyers
c) public broadcast media
d) scientific publications

(( i personally think its d ))

 
C) due to the fact that everyone needs to know. Not everyone listens to publications by scientist unless it's on the news aka public broadcast media. 
Haha I answered 2 of your questions now
                                       
                                       
                                       
                                       

               
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                         O                                     O
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Very roughly, it starts about 100 kilometers above the Earth, but there is still part of the Earth's atmosphere even at this altitude.