Biology, 30.07.2019 05:00 raekwon12

Sonar stands for “sound navigation and ranging.” what assumption was proved wrong after the invention of sonar? the age of the ocean floor is variable. the ocean floor is featureless. the ocean floor is changing. the ocean floor is denser than continental crust.

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Sonar stands for “sound navigation and ranging.” what assumption was proved wrong after the inventio...

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