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 When did scientists suggested that mid-ocean ridges were created by seafloor spreading? in 1910 in 1900 in 1960 in 1930 2 / 20 What is geology? the study of earth the study of rocks the study of history the study of maps 3 / 20 Which is the deepest point on earth? The Mid-Atlantic ridge The Challenger Deep Antarctica Iceland mid-ocean ridge 4 / 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. 5 / 20 What of the following is found in the ocean floor? plate boundaries ocean trench mid-ocean ridge ice glacier only 6 / 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. It disproved Alfred Wegener's hypothesis of Continental Drift. A theory stating that Earth’s crust is broken up into large solid plates that move slowly 7 / 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. 8 / 20 The submarine mountain range running through the Atlantic Ocean is called the... Continental Shelf Atlantic Trench Mid- Ocean Ridge Abyssal Plain 9 / 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. 10 / 20 The technology used to map the ocean floor from ships in 1946 was........... GPS Sonar Artificial intelligence Ocean maps 11 / 20 What do the shades found on the maps discovered by a sonar represent? different depths of the ocean presence of green plants ridges and ocean trenches presence of living things 12 / 20 How do the ages of rocks change as you get further from the Mid-Ocean ridge? Rocks get older Rocks get younger Rocks stay the same age 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 Which scientist discovered mountain ranges located the ocean floor and developed the theory of seafloor spreading? Marie Tharp Isaac Newton Alfred Wegener Charles Darwin 15 / 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. 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. 16 / 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 17 / 20 Choose the correct order of discoveries that led to the overall theory of plate tectonics: continental drift - seafloor spreading - hotspots and transform boundaries continental drift - hotspots and transform boundaries - seafloor spreading formation of the continents - continental drift - mid-ocean ridge seafloor spreading - hotspots and transform boundaries - continental drift 18 / 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 fit of the continents matching fossils across continents evidence of glaciers in places now too warm 19 / 20 Wegener's idea that Pangaea separated into continents became the continental drift .................... hypothesis theory law fact 20 / 20 The ............................. is a seafloor mountain system formed by lava as it rises from cracks in the surface and cools. ocean valley ocean groove ocean trench mid-ocean ridge Your score is 0% Restart quiz Go to the Quizzes Page