What is a disadvantage of using multibeam echo systems to map the entire seafloor?
a. It can only detect a single narrow corridor of the seafloor.
b. There are many beams that radiate from the ship's hull.
c. There are very few vessels that are actually outfitted with these systems.
d. The systems send a pulse of sound every ten seconds.
ANS: C
The multibeam echo system was more reliable and gave better resolution than single beam systems.
Unfortunately, there are fewer than 200 vessels equipped with the multibeam system. It would be
impossible to map the entire ocean in a reasonable amount of time. Information can be found in the
section Ocean Floor Is Mapped by Bathymetry
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