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 Which of the following were pieces of evidence used by Alfred Wegener to support his hypothesis of Continental Drift? (choose ALL that apply) fit of the continents matching rocks and mountains across continents evidence of glaciers in places now too warm matching fossils across continents 2 / 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 3 / 20 What is sonar? A device using UV rays. A device to measure sound. A device that detects life. A device using sound waves to measure distance. 4 / 20 How do the ages of rocks change as you get further from the Mid-Ocean ridge? Rocks stay the same age Rocks get older Rocks get younger 5 / 20 Wegener's idea that Pangaea separated into continents became the continental drift .................... theory law hypothesis fact 6 / 20 What of the following is found in the ocean floor? mid-ocean ridge plate boundaries ocean trench ice glacier only 7 / 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. 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. 8 / 20 Which scientist discovered mountain ranges located the ocean floor and developed the theory of seafloor spreading? Alfred Wegener Charles Darwin Isaac Newton Marie Tharp 9 / 20 The submarine mountain range running through the Atlantic Ocean is called the... Abyssal Plain Continental Shelf Atlantic Trench Mid- Ocean Ridge 10 / 20 When did scientists suggested that mid-ocean ridges were created by seafloor spreading? in 1960 in 1900 in 1910 in 1930 11 / 20 In the Atlantic ocean, where is the youngest seafloor located? Towards the north and south poles. Young seafloor is located randomly throughout the ocean. Towards the edges, near the eastern and western continents. Towards the middle of the ocean at ocean ridges. 12 / 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 - hotspots and transform boundaries - seafloor spreading continental drift - seafloor spreading - hotspots and transform boundaries 13 / 20 How did scientists discover the presence of mountain ranges on the ocean floor? 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. They dived in and examined the bottom of the ocean. 14 / 20 What is geology? the study of rocks the study of earth the study of history the study of maps 15 / 20 What did Marie Tharp's work represent for 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. There is no relation between Marie Tharp's work and the continental drift hypothesis. 16 / 20 What do the shades found on the maps discovered by a sonar represent? ridges and ocean trenches presence of green plants different depths of the ocean presence of living things 17 / 20 The technology used to map the ocean floor from ships in 1946 was........... GPS Sonar Ocean maps Artificial intelligence 18 / 20 The .............................  is a seafloor mountain system formed by lava as it rises from cracks in the surface and cools. ocean valley mid-ocean ridge ocean groove ocean trench 19 / 20 Which is the deepest point on earth? The Challenger Deep Iceland mid-ocean ridge The Mid-Atlantic ridge Antarctica 20 / 20 Why wasn't Marie Tharp allowed on the seagoing expeditions? She got seasick easily They thought women brought bad luck at sea She didn't know how to swim 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