DuringIn 1912, Alfred Wegener (pronounced as vey-guh-nuhr), a Germanmeteorologist, proposed a theory that about 200 million years ago, thecontinents were once one large landmass. He called this landmassPangaea, a Greek word which means "All Earth.” This Pangaea startedto break intotwo smaller supercontinent called Laurasia andGondwanalandthe Jurassic Period. These smallersupercontinents broke into the continents and these continentsseparated and drifted apart since then. Wegener searched for evidencesto support his claim. He noticed the fit of the edges of the continents onthe opposite sides of the South Atlantic. His evidence to the ContinentalDrift Theory includes the distribution of fossils in different continents,rock features, and ancient climates.Technology (192-1950)- the SONAR (Sound Navigation and Ranging)system is a device that bounces sound waves off underwater objects andthen records the echoes of these sound waves. It allowed scientist tomap the mid-ocean ridges. In the 1950s scientists used magnetometersto detect magnetic variations on the ocean floor. Age acting rocks helpedprove that mid-ocean ridges create new sea floor.Arthur Holmes (1929) was a British geologist. He suggested that thermalconvection currents in the mantle were the force moving the continents.Ship Atlantis (1931-1966)- Atlantis was the first ship built specificallyfor marine biology, geology, and oceanographic. The first Woods HoleOceanographic Institution (WHOI) research ship. The ship beganworking in 1931 and retired in 1966,Hugo Benioff (1935) is an American seismologist. He is famous for hiswork on deep focus earthquakes and how they are associated withsubduction wnes. He was the first to propose that subduction zonescause deep focus earthquakes,React on each paragraph. What ideas or principles can your add to these?​