What is a shadow zone?
a. A zone that is unable to be penetrated by sound waves due to the density of seawater.
b. A zone that is unable to be penetrated by light waves due to deep depths.
c. A zone created in front of ships and submarines that creates a converging blind spot for
sound waves.
d. A zone where the divergence of sound waves creates a region that has little sound energy
penetration
ANS: D
These shadow zones are areas have very little sound energy penetration. They are used by submariners
and the ships that are hunting them. Information can be found in the section Sound Travels Much
Farther Than Light through the Ocean.
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