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Oceanography (seafloor mapping): Our knowledge of ocean-basin topography has been obtained using which method(s)? Consider geophysical and acoustic techniques used to map the seabed. Choose the correct option.

Q: Oceanography (seafloor mapping): Our knowledge of ocean-basin topography has been obtained using which method(s)? Consider geophysical and acoustic techniques used to map the seabed. Choose the correct option.

Concept Seafloor topography is mapped via echo sounding (single-beam), side-scan sonar and multibeam bathymetry, as well as seismic surveying for sub-seafloor structure. Hence, all listed methods contribute.

Difficulty: Easy

Seismic surveying
Echo sounder
Side-scan sonar
All of the above

Correct Answer: All of the above

Explanation:

Concept
Seafloor topography is mapped via echo sounding (single-beam), side-scan sonar and multibeam bathymetry, as well as seismic surveying for sub-seafloor structure. Hence, all listed methods contribute.

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