Go to the Quizzes Page Developing the Theory of Plate Tectonics 0% 116 Created by AbuBakrShalabi Please write your name and email to receive your certificate. 1 / 20 The ............................. is a seafloor mountain system formed by lava as it rises from cracks in the surface and cools. ocean trench ocean groove ocean valley mid-ocean ridge 2 / 20 What did Marie Tharp's work represent for the continental drift hypothesis? Tharp’s work was the final proof to support the continental drift hypothesis. 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. Marie Tharp mapped the location of the continents on the Earth's surface. 3 / 20 Wegener's idea that Pangaea separated into continents became the continental drift .................... theory law hypothesis fact 4 / 20 What do the shades found on the maps discovered by a sonar represent? presence of green plants ridges and ocean trenches different depths of the ocean presence of living things 5 / 20 The submarine mountain range running through the Atlantic Ocean is called the... Atlantic Trench Abyssal Plain Mid- Ocean Ridge Continental Shelf 6 / 20 Which of the following were pieces of evidence used by Alfred Wegener to support his hypothesis of Continental Drift? (choose ALL that apply) evidence of glaciers in places now too warm fit of the continents matching rocks and mountains across continents matching fossils across continents 7 / 20 What discovery revived Wegener's idea of Continental Drift and eventually led to the Theory of Plate Tectonics? The Discovery of radioactive isotopes The Discovery of mid-ocean ridges and seafloor spreading The Discovery of America The Discovery of new fossils on Africa and South America 8 / 20 What of the following is found in the ocean floor? ice glacier only plate boundaries ocean trench mid-ocean ridge 9 / 20 What is geology? the study of earth the study of history the study of maps the study of rocks 10 / 20 How did scientists discover the presence of mountain ranges on the ocean floor? They dived in and examined the bottom of the ocean. They could easily see the ocean floor from the surface. They used a ship that captures pictures of the ocean floor. They used an echo sounder which sends a sound wave pulse that hits the ocean bottom. 11 / 20 Choose the correct order of discoveries that led to the overall theory of plate tectonics: continental drift - hotspots and transform boundaries - seafloor spreading seafloor spreading - hotspots and transform boundaries - continental drift formation of the continents - continental drift - mid-ocean ridge continental drift - seafloor spreading - hotspots and transform boundaries 12 / 20 Which scientist discovered mountain ranges located the ocean floor and developed the theory of seafloor spreading? Marie Tharp Charles Darwin Alfred Wegener Isaac Newton 13 / 20 Why wasn't Marie Tharp allowed on the seagoing expeditions? She didn't know how to swim She was pregnant at the time and they thought it would be bad for her health They thought women brought bad luck at sea She got seasick easily 14 / 20 What is sonar? A device using sound waves to measure distance. A device to measure sound. A device that detects life. A device using UV rays. 15 / 20 How do the ages of rocks change as you get further from the Mid-Ocean ridge? Rocks stay the same age Rocks get younger Rocks get older 16 / 20 When did scientists suggested that mid-ocean ridges were created by seafloor spreading? in 1930 in 1910 in 1900 in 1960 17 / 20 The technology used to map the ocean floor from ships in 1946 was........... Ocean maps Artificial intelligence Sonar GPS 18 / 20 Why was the evidence of seafloor spreading so important to the idea of Continental Drift? It disproved Alfred Wegener's hypothesis 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 19 / 20 Which is the deepest point on earth? The Mid-Atlantic ridge Iceland mid-ocean ridge The Challenger Deep Antarctica 20 / 20 In the Atlantic ocean, where is the youngest seafloor located? Towards the north and south poles. Towards the edges, near the eastern and western continents. Young seafloor is located randomly throughout the ocean. Towards the middle of the ocean at ocean ridges. Your score is 0% Restart quiz Go to the Quizzes Page