FirstGroup map the ocean floor i

[Nahogi Kaul]

FirstGroup map the ocean floor it showed how the ocean floor gently slopes away from the land and then plummets thousands of feet into vast flat plains but the western Pacific is different it drops of again testomaxx 200 into the five mile deep hole a whole blue right out of the water the long-held belief that the sea floor was flat and featureless and it spawned a mystery because nobody could understand how this strange under water feature came about it would be 75 years before any answers emerged it took a .

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