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the answer is information and communication
Best thing is an EVP
The best place to stay during a tsunami is Tokyo because it has lots of natural disasters their.
mainly we can tell that the communication duiring disaster is very inevitable most probaly a radio-fm am could be the best of all also the use of satellite ensure good and quorate mode of communication in the times of a disaster
radio
Actually, AM is better than FM. AM can cover the world, and is the best form of communication. FM is completely worthless except for the fact that it's better sounding.
With such amazing developments like televisions and the Internet, radio can often be thought of as a bit old fashioned. Certainly it is not the case. Radio is still one of the best tools for advertising and communication. +++ With respect you've missed a point there. Many people now use glorified portable telephones for Internet access, and what are they but radios?
Communication
In cellphones, communications takes place via radio waves to a satellite, or via an underground cable network.
Anyone is great for an emergncy as long as it works well
Radio one
means of communication