Mona’s grandfather was a famous oceanographer in the 1960s and 1970s. Which of the following methods did he MOST likely use to map the sea floor?

Question

A. side-scan sonar, which is still used today with GPS tracking
B. side-scan sonar, which can map areas up to several hundred kilometers
C. multibeam sonar, which is still used today with GPS tracking
D. multibeam sonar, which can map areas up to several hundred kilometers

Answer 1

D. multibeam sonar, which can map areas up to several hundred kilometers