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,what feature have you just discovered?
A)an abyssal plain
B)a deep trench
C)a mid-ocean ridge
D)a continental shelf

Question

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,what feature have you just discovered? 
A)an abyssal plain 
B)a deep trench 
C)a mid-ocean ridge 
D)a continental shelf

Quizplus · Accepted Answer

The continuous sonar data shows a consistent elevation increase in the center of the surveyed area, which is indicative of a mid-ocean ridge. Option A (abyssal plain) would show a relatively flat bottom, option B (deep trench) would show a sudden decrease in depth, and option D (continental shelf) would show a shallow slope towards the shore.

You Are Running a Sonar Survey to Map the Bathymetry