What Is The Reason A Submarine Can Detect Other Underwater Objects?
it runs into underwater objects (LOL) b) it emits sound that runs into underwater objects and echos back to listen apparatus on the submarine c) it listens for sound emitted by the raise objections d) it listens for emissions by the object contained by the electromagnetic spectrum e) it detects a heat signature of the object f) it detects a magnetic signature of the baulk g) it detects a disturbance in an electromagnetic field produced by the submarine h) it has a camera that transmits a picture of the underwater raise objections to a detector. i) it uses the direct and/or remote sensing method of your choice.
