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 Why wasn't Marie Tharp allowed on the seagoing expeditions? 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 She didn't know how to swim 2 / 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 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 used a ship that captures pictures of the ocean floor. 3 / 20 Choose the correct order of discoveries that led to the overall theory of plate tectonics: formation of the continents - continental drift - mid-ocean ridge seafloor spreading - hotspots and transform boundaries - continental drift continental drift - seafloor spreading - hotspots and transform boundaries continental drift - hotspots and transform boundaries - seafloor spreading 4 / 20 Wegener's idea that Pangaea separated into continents became the continental drift .................... hypothesis theory law fact 5 / 20 Which is the deepest point on earth? Iceland mid-ocean ridge The Challenger Deep The Mid-Atlantic ridge Antarctica 6 / 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 7 / 20 What is sonar? A device using UV rays. A device that detects life. A device using sound waves to measure distance. A device to measure sound. 8 / 20 The submarine mountain range running through the Atlantic Ocean is called the... Continental Shelf Mid- Ocean Ridge Abyssal Plain Atlantic Trench 9 / 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. Marie Tharp mapped the location of the continents on the Earth's surface. There is no relation between Marie Tharp's work and the continental drift hypothesis. 10 / 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 11 / 20 When did scientists suggested that mid-ocean ridges were created by seafloor spreading? in 1910 in 1900 in 1960 in 1930 12 / 20 What is geology? the study of earth the study of rocks the study of maps the study of history 13 / 20 What do the shades found on the maps discovered by a sonar represent? ridges and ocean trenches presence of living things presence of green plants different depths of the ocean 14 / 20 Which scientist discovered mountain ranges located the ocean floor and developed the theory of seafloor spreading? Isaac Newton Charles Darwin Alfred Wegener Marie Tharp 15 / 20 The technology used to map the ocean floor from ships in 1946 was........... Sonar Artificial intelligence GPS Ocean maps 16 / 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 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 It shows how land bridges let prehistoric animals cross the oceans. 17 / 20 In the Atlantic ocean, where is the youngest seafloor located? Young seafloor is located randomly throughout the ocean. Towards the north and south poles. Towards the middle of the ocean at ocean ridges. Towards the edges, near the eastern and western continents. 18 / 20 What discovery revived Wegener's idea of Continental Drift and eventually led to the Theory of Plate Tectonics? The Discovery of new fossils on Africa and South America The Discovery of mid-ocean ridges and seafloor spreading The Discovery of radioactive isotopes The Discovery of America 19 / 20 What of the following is found in the ocean floor? mid-ocean ridge ocean trench ice glacier only plate boundaries 20 / 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 fossils across continents matching rocks and mountains across continents Your score is 0% Restart quiz Go to the Quizzes Page