Question

1pt how do scientists collect data for bathymetric maps?

a. sonar

b. satellite altimetry

c. remotely operated vehicles

d. all of the above

Explanation:

Sonar measures water - depth by sending sound waves and timing their return. Satellite altimetry can measure changes in sea - surface height related to underwater topography. Remotely operated vehicles can carry sensors to directly measure bathymetric data. All these are used for bathymetric map data collection.

Answer:

D. all of the above