This quiz works best with JavaScript enabled. Home > Cbse > Class 11 > Arts Humanities > Geography > Class 11 Geography Chapter 2 The Earth'S Structure – Quiz 4 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Geography Chapter 2 The Earth'S Structure Quiz 4 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What is the cooling source for convection in the mantle? A) The Crust. B) The Mantle. C) The Core. D) None of the above. Show Answer Correct Answer: A) The Crust. 2. According to Earth's chemical properties, what is the correct order of layers from most dense to least dense? A) Crust, mantle, core. B) Inner core, outer coure, mantle, crust. C) Lithosphere, mantle, outer core, inner core. D) Core, mantle, crust. Show Answer Correct Answer: D) Core, mantle, crust. 3. Mount Everest formed when two tectonic plates collided. Which of the following processes lead to theformation of Mount Everest? A) Eriosion. B) Pushed up or uplift. C) Substidence. D) Weathering. Show Answer Correct Answer: B) Pushed up or uplift. 4. Two types of surface waves A) Love waves and Rayleigh Waves. B) P waves and S waves. C) All the above. D) None of the above. Show Answer Correct Answer: A) Love waves and Rayleigh Waves. 5. Trilobites are extinct animals that lived in the oceans. Fossils of these animals can be found in dry areas such as Cincinnati. What does this indicate? A) Trilobites now live underground. B) Trilobites are the ancestors of jellyfish. C) Cincinnati was once covered by the ocean where trilobites lived. D) The environment changed, creating small saltwater lakes in Cincinnati. Show Answer Correct Answer: C) Cincinnati was once covered by the ocean where trilobites lived. 6. The ..... discontinuity is between the crust and the mantle. A) Gutenberg. B) Mohorovicic. C) All the above. D) None of the above. Show Answer Correct Answer: B) Mohorovicic. 7. The South American and African plates are diverging at a rate of about ..... per year. A) 50 cm. B) 1 cm. C) 18.5 cm. D) 3 cm. Show Answer Correct Answer: D) 3 cm. 8. What is the primary cause of tectonic plate movement? A) Earth's rotation. B) Solar radiation. C) Convection currents in the mantle. D) Gravitational pull from the moon. Show Answer Correct Answer: C) Convection currents in the mantle. 9. The lower boundary of the crust is called the Mohorovicic discontinuity, or ..... A) Oceanic crust. B) Core. C) "Moho". D) Plasticity. Show Answer Correct Answer: C) "Moho". 10. What is the evidence of the Earth's sphericity based on circumnavigation? A) The circular horizon. B) The deflection of winds. C) The Earth's shadow on the moon. D) The deflection of ocean currents. Show Answer Correct Answer: A) The circular horizon. 11. Which process would be most effective in determining the age of fossils embedded in rock? A) Use of index fossils. B) Relative dating. C) Absolute dating. D) Use of core sampling. Show Answer Correct Answer: C) Absolute dating. 12. What is the only entirely liquid layer of the earth? A) The inner core. B) The outer core. C) The upper mantle. D) The lower mantle. Show Answer Correct Answer: B) The outer core. 13. Which of the following processes occurs as a result of the "weight" of an oceanic plate sinking into the mantle A) Slab pull. B) Ridge push. C) All the above. D) None of the above. Show Answer Correct Answer: A) Slab pull. 14. Where two plate slide by each other in opposite directions is called a ..... ? A) Transform boundary. B) Divergent boundary. C) Convergent boundary. D) None of the above. Show Answer Correct Answer: A) Transform boundary. 15. What is the name of the supercontinent that existed around 335 million years ago? A) Gondwana. B) Pangaea. C) Laurasia. D) Rodinia. Show Answer Correct Answer: B) Pangaea. 16. Sial layer forms the ..... A) Ocean floor. B) Continents. C) All the above. D) None of the above. Show Answer Correct Answer: B) Continents. 17. Which is the process that breaks up rock on Earth's surface? A) Deposition. B) Compaction. C) Melting. D) Weathering. Show Answer Correct Answer: D) Weathering. 18. What is the densest layer? A) Inner Core. B) Crust. C) Mantle. D) Outer Core. Show Answer Correct Answer: A) Inner Core. 19. What is the approximate age of the Earth? A) 45 million years. B) 450 million years. C) 4500 million years. D) 4500 years. Show Answer Correct Answer: C) 4500 million years. 20. Which continent is the smallest? A) Antarctica. B) Asia. C) North America. D) Australia. Show Answer Correct Answer: D) Australia. 21. Petroleum occurs in ..... rocks. A) Sedimentary. B) Igneous. C) Metamorphic. D) None of the above. Show Answer Correct Answer: A) Sedimentary. 22. Type of fold:downfolds or troughs A) Benchmarks. B) Anticlines. C) Synclines. D) Monoclines. Show Answer Correct Answer: C) Synclines. 23. This Earth's layer is a solid, and made of iron & nickle. A) Mantle. B) Inner core. C) Outer core. D) Lithosphere. Show Answer Correct Answer: B) Inner core. 24. Scientists who study earth and the processes that have shaped Earth over time are called ..... A) Biologists. B) Genetics. C) Geologists. D) None of the above. Show Answer Correct Answer: C) Geologists. 25. The layer of the earth, molten rock, between the crust and the core A) Core. B) Crust. C) Mantle. D) Magma. Show Answer Correct Answer: C) Mantle. 26. What is the Earth's crust mainly composed of? A) Iron and nickel. B) Silicon and oxygen. C) Magma. D) Water and carbon. Show Answer Correct Answer: B) Silicon and oxygen. 27. What creates both solid and liquid parts in the Earth's core? A) Strong pressure and temperature. B) The crust and mantle holding the heat inside the Earth. C) Low pressure and temperature. D) Strong pressure and low temperature. Show Answer Correct Answer: A) Strong pressure and temperature. 28. Which layer of the earth is under the highest pressure? A) Mantle. B) Outer Core. C) Inner Core. D) Crust. Show Answer Correct Answer: C) Inner Core. 29. What is the Earth's crust made of? A) Water. B) Solid rock. C) Nickel and iron. D) Molten rock. Show Answer Correct Answer: B) Solid rock. 30. Formed party by explosive eruptions of ash and rock fragments and partly by mild lava flows A) Cinder-cone volcano. B) Composite volcano. C) All the above. D) None of the above. Show Answer Correct Answer: B) Composite volcano. 31. The area around the pacific plate where boundaries form is called ..... A) Fire zone. B) Zone of fire. C) Ring of fire. D) Death ring. Show Answer Correct Answer: C) Ring of fire. 32. When tectonic plates collide and one plate sinks beneath another plate. A) Transform Boundary. B) Lithosphere. C) Subduction. D) Divergent Boundary. Show Answer Correct Answer: C) Subduction. 33. When heat and pressure are applied to a sedimentary rock, it changes into which of the following? A) Sedimentary Rock. B) Igneous Rock. C) Metamorphic Rock. D) Magma. Show Answer Correct Answer: C) Metamorphic Rock. 34. The outer layer of Earth's crust is made up of huge pieces of rock called A) Faults. B) Magma. C) Tectonic plates. D) Tsunamis. Show Answer Correct Answer: C) Tectonic plates. 35. How fast do tectonic plates move? A) A few kilometers per year. B) A few centimeters per year. C) A few meters per year. D) A few hundred kilometers per year. Show Answer Correct Answer: B) A few centimeters per year. 36. Which of these observations DO NOT support continental drift theory A) The continents seem to fit together well. B) The same fossils are found on different continents. C) Different landforms are found on different continents. D) The continents are still moving a few centimeters each year. Show Answer Correct Answer: C) Different landforms are found on different continents. 37. Mixture of rock, sediment, and organic matter ..... A) Weathering. B) Soil. C) Volcano. D) Erosion. Show Answer Correct Answer: B) Soil. 38. The deepest hole ever digged reaches A) The outer core. B) Just a few kilometers of the crust. C) The mantle. D) The inner core. Show Answer Correct Answer: B) Just a few kilometers of the crust. 39. Which is a vertical section of soil that shows the layers? A) Parent rock. B) Soil horizon. C) Humus. D) Soil profile. Show Answer Correct Answer: D) Soil profile. 40. What is made of dark, dense rock such as basalt? A) Continental Crust. B) Asthenosphere. C) Lithosphere. D) Oceanic Crust. Show Answer Correct Answer: D) Oceanic Crust. 41. Earth's plates are a ..... solid material. Earth's mantle is a ..... solid material. A) Soft; soft. B) Hard; hard. C) Hard; soft. D) Soft; hard. Show Answer Correct Answer: C) Hard; soft. 42. Sudden and violent shaking of the ground as a result of movements within the earth's crust or volcanic action A) Mountains. B) Earthquakes. C) Trench. D) Hotspot Volcanoes. Show Answer Correct Answer: B) Earthquakes. 43. Which layer of the Earth is primarily involved in the creation of new oceanic crust? A) Outer Core. B) Inner Core. C) Asthenosphere. D) Lithosphere. Show Answer Correct Answer: C) Asthenosphere. 44. What evidence do we have that shows evidence that the plates have moved? A) Similar rocks on different continents. B) Fossils from the same land animals on different continents and the continents fit together like a puzzle. C) Different fossils on different continents. D) The continents all have a similar shape and the fossils are the same on every continent. Show Answer Correct Answer: B) Fossils from the same land animals on different continents and the continents fit together like a puzzle. 45. The core's temperature is around ..... A) 6000C. B) 4000C. C) 5000C. D) 3000C. Show Answer Correct Answer: C) 5000C. 46. Layer that surrounds Earth. Made of continental and oceanic rock A) Mantle. B) Crust. C) All the above. D) None of the above. Show Answer Correct Answer: B) Crust. 47. If magma increases in temperature (get hot) what will happen? A) It moves down (sinks). B) It moves up (rises). C) All the above. D) None of the above. Show Answer Correct Answer: B) It moves up (rises). 48. Weather patterns such as wind, temperature, air pressure, and clouds belong towhich of Earth's spheres? A) Geosphere. B) Atmosphere. C) Hydrosphere. D) Biosphere. Show Answer Correct Answer: B) Atmosphere. 49. The Earth's thinnest layer A) Lithosphere. B) Upper Mantle. C) Discontinuities. D) Inner Core. Show Answer Correct Answer: A) Lithosphere. 50. It is made up of melted rock A) Crust. B) Mantle. C) Core. D) None of the above. Show Answer Correct Answer: B) Mantle. 51. Formed when animal tracks and imprints of plants are made in sediment ..... A) Sediment. B) Bones. C) Fossils. D) Weathering. Show Answer Correct Answer: C) Fossils. 52. The process by which water, wind, ice, and changes in temperature break down rock into fragments called sediments. A) Erosion. B) Weathering. C) Igneous Rock. D) Deposition. Show Answer Correct Answer: B) Weathering. 53. We have dug into the core of the Earth. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 54. What are the 3 layers of the Mantle A) Lithosphere, asthenosphere, mesosphere. B) Basalt, granite, igneous. C) Crust, mantle, core. D) None of the above. Show Answer Correct Answer: A) Lithosphere, asthenosphere, mesosphere. 55. When a seismic wave goes through the layers it ..... A) Increases energy. B) Reverses directions. C) Changes speed. D) Stops moving. Show Answer Correct Answer: C) Changes speed. 56. Why is understanding tectonic plate movement important to understanding our Earth? A) It lets us know why we have seasons. B) It explains why there are so many countries. C) It explains how landforms were made and why earthquakes happen. D) It explains why the weather changes so quickly. Show Answer Correct Answer: C) It explains how landforms were made and why earthquakes happen. 57. What is the primary composition of Earth's mantle? A) Silicon and oxygen. B) Iron and nickel. C) Carbon and hydrogen. D) Helium and neon. Show Answer Correct Answer: A) Silicon and oxygen. 58. The soft layer of the mantle on which pieces of lithosphere move is called A) Outer core. B) Lithosphere. C) Asthenosphere. D) Mesosphere. Show Answer Correct Answer: C) Asthenosphere. 59. This land formation occurs at a divergent continental/ continental boundary. A) Mid ocean ridge. B) Deep ocean trench. C) Pacific hot spot. D) Rift valley. Show Answer Correct Answer: D) Rift valley. 60. Where does the heat come from that drives this convection current in the mantle? A) The sun. B) The core. C) The mantle. D) The crust. Show Answer Correct Answer: B) The core. ← PreviousNext →Related QuizzesArts Humanities QuizzesClass 11 QuizzesClass 11 Geography Chapter 2 The Earth'S Structure Quiz 1Class 11 Geography Chapter 2 The Earth'S Structure Quiz 2Class 11 Geography Chapter 2 The Earth'S Structure Quiz 3Class 11 Geography Chapter 2 The Earth'S Structure Quiz 5Class 11 Geography Chapter 2 The Earth'S Structure Quiz 6Class 11 Geography Chapter 2 The Earth'S Structure Quiz 7Class 11 Geography Chapter 2 The Earth'S Structure Quiz 8Class 11 Geography Chapter 2 The Earth'S Structure Quiz 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books