Go to the Quizzes Page Developing the Theory of Plate Tectonics 0% 866 Created by AbuBakrShalabi Please write your name and email to receive your certificate. 1 / 20 The submarine mountain range running through the Atlantic Ocean is called the... Abyssal Plain Atlantic Trench Mid- Ocean Ridge Continental Shelf 2 / 20 Why was the evidence of seafloor spreading so important to the idea of Continental Drift? It shows how land bridges let prehistoric animals cross the oceans. It answers the question for HOW continents could be moving. A theory stating that Earth’s crust is broken up into large solid plates that move slowly It disproved Alfred Wegener's hypothesis of Continental Drift. 3 / 20 Why wasn't Marie Tharp allowed on the seagoing expeditions? She got seasick easily They thought women brought bad luck at sea She was pregnant at the time and they thought it would be bad for her health She didn't know how to swim 4 / 20 What do the shades found on the maps discovered by a sonar represent? different depths of the ocean ridges and ocean trenches presence of green plants presence of living things 5 / 20 What of the following is found in the ocean floor? ice glacier only plate boundaries ocean trench mid-ocean ridge 6 / 20 Which is the deepest point on earth? The Challenger Deep Iceland mid-ocean ridge Antarctica The Mid-Atlantic ridge 7 / 20 Which of the following were pieces of evidence used by Alfred Wegener to support his hypothesis of Continental Drift? (choose ALL that apply) matching rocks and mountains across continents evidence of glaciers in places now too warm matching fossils across continents fit of the continents 8 / 20 How did scientists discover the presence of mountain ranges on the ocean floor? They used an echo sounder which sends a sound wave pulse that hits the ocean bottom. They used a ship that captures pictures of the ocean floor. They could easily see the ocean floor from the surface. They dived in and examined the bottom of the ocean. 9 / 20 How do the ages of rocks change as you get further from the Mid-Ocean ridge? Rocks get older Rocks stay the same age Rocks get younger 10 / 20 Wegener's idea that Pangaea separated into continents became the continental drift .................... law hypothesis fact theory 11 / 20 The .............................  is a seafloor mountain system formed by lava as it rises from cracks in the surface and cools. ocean groove ocean valley mid-ocean ridge ocean trench 12 / 20 Choose the correct order of discoveries that led to the overall theory of plate tectonics: formation of the continents - continental drift - mid-ocean ridge seafloor spreading - hotspots and transform boundaries - continental drift continental drift - hotspots and transform boundaries - seafloor spreading continental drift - seafloor spreading - hotspots and transform boundaries 13 / 20 What is sonar? A device using sound waves to measure distance. A device using UV rays. A device to measure sound. A device that detects life. 14 / 20 Which scientist discovered mountain ranges located the ocean floor and developed the theory of seafloor spreading? Marie Tharp Alfred Wegener Isaac Newton Charles Darwin 15 / 20 When did scientists suggested that mid-ocean ridges were created by seafloor spreading? in 1910 in 1960 in 1930 in 1900 16 / 20 In the Atlantic ocean, where is the youngest seafloor located? Towards the edges, near the eastern and western continents. Towards the north and south poles. Young seafloor is located randomly throughout the ocean. Towards the middle of the ocean at ocean ridges. 17 / 20 What is geology? the study of rocks the study of maps the study of earth the study of history 18 / 20 What discovery revived Wegener's idea of Continental Drift and eventually led to the Theory of Plate Tectonics? The Discovery of mid-ocean ridges and seafloor spreading The Discovery of new fossils on Africa and South America The Discovery of radioactive isotopes The Discovery of America 19 / 20 What did Marie Tharp's work represent for the continental drift hypothesis? Marie Tharp mapped the location of the continents on the Earth's surface. Marie Tharp measured the speed and the direction of the continents' movement. There is no relation between Marie Tharp's work and the continental drift hypothesis. Tharp’s work was the final proof to support the continental drift hypothesis. 20 / 20 The technology used to map the ocean floor from ships in 1946 was........... GPS Ocean maps Artificial intelligence Sonar Your score is 0% Restart quiz Go to the Quizzes Page