asked 224k views
3 votes
_______ is the use of sound waves to detect and measure objects underwater.

A. GPS
B. GIS
C. OSTM
D. Sonar

asked
User Deanmv
by
8.1k points

2 Answers

1 vote
your answer is Sonar 
answered
User Frank Martin
by
8.4k points
7 votes
D
Sonar uses sound waves
answered
User Travis Reeder
by
8.2k points

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