Deck : General Navigation - 1034/2138 |
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Your radar indicates a target; however, there is no visible object at the point indicated. A large mountain, approximately 50 miles away on the same bearing as the target, is breaking the horizon. You should suspect the radar target is caused by __________. |
A) sub-refraction |
B) ionospheric skip waves |
C) a submerged submarine |
D) ducting |
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