Continental Drift Theory
In the mid-1900’s, scientists realized that the ocean floor had many mountain ranges similar to those on the continents. These underwater mountain ranges.
May 2008US Sensor Calibration1 Ultrasonic Sensors Calibration Omar A. Daud Truc-Vien T. Nguyen May 16, 2008.
What is the world ocean and how is it explored?
THE OCEAN Ocean Zones and the Ocean Floor Text Book pages # 350 - 356.
