Which of these terms is an acronym?
laser
radar
sonar
all of the above
Laser stands for "Light Amplification by Stimulated Emission of Radiation"; Radar for "Radio Detection and Ranging"; Sonar for "Sound Navigation and Ranging"
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laser
radar
sonar
all of the above
answers

17

11

17

9384

38

21

349

25

17

12

14

137

157

33

52

10

277

26

19

28