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 is the deepest point on earth? Iceland mid-ocean ridge The Challenger Deep Antarctica The Mid-Atlantic ridge 2 / 20 What is sonar? A device using sound waves to measure distance. A device to measure sound. A device using UV rays. A device that detects life. 3 / 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 mapped the location of the continents on the Earth's surface. Marie Tharp measured the speed and the direction of the continents' movement. Tharp’s work was the final proof to support the continental drift hypothesis. 4 / 20 The technology used to map the ocean floor from ships in 1946 was........... GPS Artificial intelligence Sonar Ocean maps 5 / 20 Wegener's idea that Pangaea separated into continents became the continental drift .................... fact law theory hypothesis 6 / 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 continental drift - seafloor spreading - hotspots and transform boundaries formation of the continents - continental drift - mid-ocean ridge 7 / 20 What is geology? the study of rocks the study of earth the study of history the study of maps 8 / 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 fossils across continents fit of the continents evidence of glaciers in places now too warm matching rocks and mountains across continents 9 / 20 Why wasn't Marie Tharp allowed on the seagoing expeditions? She got seasick easily 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 didn't know how to swim 10 / 20 In the Atlantic ocean, where is the youngest seafloor located? Towards the edges, near the eastern and western continents. Towards the middle of the ocean at ocean ridges. Young seafloor is located randomly throughout the ocean. Towards the north and south poles. 11 / 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. 12 / 20 The submarine mountain range running through the Atlantic Ocean is called the... Mid- Ocean Ridge Abyssal Plain Continental Shelf Atlantic Trench 13 / 20 Which scientist discovered mountain ranges located the ocean floor and developed the theory of seafloor spreading? Alfred Wegener Isaac Newton Charles Darwin Marie Tharp 14 / 20 The ............................. is a seafloor mountain system formed by lava as it rises from cracks in the surface and cools. ocean valley ocean groove mid-ocean ridge ocean trench 15 / 20 What of the following is found in the ocean floor? plate boundaries ocean trench mid-ocean ridge ice glacier only 16 / 20 When did scientists suggested that mid-ocean ridges were created by seafloor spreading? in 1960 in 1930 in 1910 in 1900 17 / 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 18 / 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 19 / 20 Why was the evidence of seafloor spreading so important to the idea of Continental Drift? It answers the question for HOW continents could be moving. It shows how land bridges let prehistoric animals cross the oceans. 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 20 / 20 What discovery revived Wegener's idea of Continental Drift and eventually led to the Theory of Plate Tectonics? The Discovery of America The Discovery of radioactive isotopes The Discovery of new fossils on Africa and South America The Discovery of mid-ocean ridges and seafloor spreading Your score is 0% Restart quiz Go to the Quizzes Page