You Are Running a Sonar Survey to Map the Bathymetry

question 39

Multiple Choice

You are running a sonar survey to map the bathymetry of an ocean basin.Using the following continuous sonar data giving the depth of the seafloor in meters,what feature have you just discovered? $$\begin{array} { | l | l | l | l | l | l | l | l | l | l | l | l | l | } \hline 3071 & 3011 & 2891 & 2846 & 2756 & 2577 & 2532 & 2487 & 2502 & 2577 & 2756 & 2921 & 3041 \\\hline\end{array}$$

• A) an abyssal plain
• B) a deep trench
• C) a mid-ocean ridge
• D) a continental shelf

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