Go to the Quizzes Page Developing the Theory of Plate Tectonics 0% 980 Created by AbuBakrShalabi Please write your name and email to receive your certificate. 1 / 20 What of the following is found in the ocean floor? plate boundaries mid-ocean ridge ocean trench ice glacier only 2 / 20 What is sonar? A device to measure sound. A device that detects life. A device using UV rays. A device using sound waves to measure distance. 3 / 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 matching fossils across continents fit of the continents matching rocks and mountains across continents 4 / 20 The technology used to map the ocean floor from ships in 1946 was........... Sonar GPS Artificial intelligence Ocean maps 5 / 20 Choose the correct order of discoveries that led to the overall theory of plate tectonics: 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 continental drift - hotspots and transform boundaries - seafloor spreading 6 / 20 Which scientist discovered mountain ranges located the ocean floor and developed the theory of seafloor spreading? Alfred Wegener Marie Tharp Charles Darwin Isaac Newton 7 / 20 What is geology? the study of earth the study of maps the study of rocks the study of history 8 / 20 How do the ages of rocks change as you get further from the Mid-Ocean ridge? Rocks get younger Rocks stay the same age Rocks get older 9 / 20 The .............................  is a seafloor mountain system formed by lava as it rises from cracks in the surface and cools. mid-ocean ridge ocean valley ocean groove ocean trench 10 / 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 new fossils on Africa and South America The Discovery of America The Discovery of mid-ocean ridges and seafloor spreading 11 / 20 The submarine mountain range running through the Atlantic Ocean is called the... Mid- Ocean Ridge Atlantic Trench Continental Shelf Abyssal Plain 12 / 20 Which is the deepest point on earth? The Mid-Atlantic ridge Antarctica The Challenger Deep Iceland mid-ocean ridge 13 / 20 What did Marie Tharp's work represent for the continental drift hypothesis? There is no relation between Marie Tharp's work and the continental drift hypothesis. Marie Tharp measured the speed and the direction of the continents' movement. Marie Tharp mapped the location of the continents on the Earth's surface. Tharp’s work was the final proof to support the continental drift hypothesis. 14 / 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 15 / 20 When did scientists suggested that mid-ocean ridges were created by seafloor spreading? in 1900 in 1910 in 1960 in 1930 16 / 20 In the Atlantic ocean, where is the youngest seafloor located? Towards the north and south poles. Towards the middle of the ocean at ocean ridges. Towards the edges, near the eastern and western continents. Young seafloor is located randomly throughout the ocean. 17 / 20 How did scientists discover the presence of mountain ranges on the ocean floor? They used a ship that captures pictures of the ocean floor. They dived in and examined the bottom of the ocean. They used an echo sounder which sends a sound wave pulse that hits the ocean bottom. They could easily see the ocean floor from the surface. 18 / 20 Wegener's idea that Pangaea separated into continents became the continental drift .................... hypothesis fact law theory 19 / 20 Why was the evidence of seafloor spreading so important to the idea of Continental Drift? A theory stating that Earth’s crust is broken up into large solid plates that move slowly It answers the question for HOW continents could be moving. It disproved Alfred Wegener's hypothesis of Continental Drift. It shows how land bridges let prehistoric animals cross the oceans. 20 / 20 Why wasn't Marie Tharp allowed on the seagoing expeditions? She didn't know how to swim 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 Your score is 0% Restart quiz Go to the Quizzes Page