This quiz works best with JavaScript enabled. Home > Class 7 > Class 7 Geography Chapter 2 Inside Our Earth – Quiz 21 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Geography Chapter 2 Inside Our Earth Quiz 21 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The Earth is made of several layers, with the crust at the top, the core inside, and the mantle in the middle. The crust is the thinnest of all the layers of Earth; it is only 5 km on the ocean floors. How deep/thick is the crust in continental masses (land)? A) Approximately 32 km. B) Approximately 36 km. C) Approximately 35 km. D) 10 km. Show Answer Correct Answer: C) Approximately 35 km. 2. What type of rocks are grinding stones used to prepare paste/powder of spices and grains made of? A) Basalt. B) Sandstone. C) Granite. D) Marble. Show Answer Correct Answer: C) Granite. 3. The gas that makes up the realm of the Earth. A) Atmosphere. B) Lithosphere. C) Hydrosphere. D) All of the above. Show Answer Correct Answer: A) Atmosphere. 4. And when igneous and sedimentary rocks are subjected to heat and pressure, which type of rocks do they change into? A) Extrusive igneous. B) Metamorphic. C) Massive Molten. D) None of the above. Show Answer Correct Answer: B) Metamorphic. 5. An earthquake is measured with the machine called a A) Theismograph. B) Heismograph. C) Seismograph. D) Meismograph. Show Answer Correct Answer: C) Seismograph. 6. The term-extrusive and intrusive are used in reference to ..... A) Minerals. B) Igneous rocks. C) Sedimentary rocks. D) Metamorphic rocks. Show Answer Correct Answer: B) Igneous rocks. 7. Which of the following is an intrusive igneous rock? A) Basalt. B) Granite. C) Sandstone. D) Marble. Show Answer Correct Answer: B) Granite. 8. What is the thinnest layer of the Earth's interior? A) Mantle. B) Core. C) Crust. D) Sima. Show Answer Correct Answer: C) Crust. 9. What are fossils? A) Remains of dead plant and animals. B) A plain rock with designs. C) A igneous rock. D) A sedimentary rock. Show Answer Correct Answer: A) Remains of dead plant and animals. 10. Which layer of the Earth has very high temperature and pressure? A) Core. B) Crust. C) Mantle. D) Both a and c. Show Answer Correct Answer: A) Core. 11. Sedimentum means ..... and is a ..... word. A) Settle down, english. B) Settle down, latin. C) Change form, latin. D) None of the above. Show Answer Correct Answer: B) Settle down, latin. 12. The rocks that cool below are called A) Extrusive rocks. B) Intrusive rocks. C) All the above. D) None of the above. Show Answer Correct Answer: B) Intrusive rocks. 13. Mantle form ..... percent of earths volume A) 48. B) 85. C) 83. D) 84. Show Answer Correct Answer: D) 84. 14. The radius of the Earth A) 7651 km. B) 5673 km. C) 6732 km. D) 6371 km. Show Answer Correct Answer: D) 6371 km. 15. What is the temperature and pressure like in the central core? A) Low temperature and pressure. B) Extreme temperature and pressure. C) High temperature and pressure. D) Moderate temperature and pressure. Show Answer Correct Answer: C) High temperature and pressure. 16. The earth can be divided into three concentric layers A) Crust, mentel, core. B) Cruust, mantle, coore. C) Crust, mantle, core. D) None of the above. Show Answer Correct Answer: C) Crust, mantle, core. 17. What are the major types of rocks found in the Earth's crust? A) Intrusive and extrusive igneous rocks. B) Metamorphic and sedimentary rocks. C) Igneous and sedimentary rocks. D) Extrusive and intrusive rocks. Show Answer Correct Answer: A) Intrusive and extrusive igneous rocks. 18. How deep is the crust on oceanic crust? A) 5 m. B) 5 km. C) 35 km. D) 2021 km. Show Answer Correct Answer: B) 5 km. 19. The innermost layer of the earth is hotter than earth's surface. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 20. The deepest mine in the world is in South Africa is of ..... km A) 6. B) 7. C) 8. D) None of the above. Show Answer Correct Answer: A) 6. 21. Which rock is formed by the cooling of molten magma at the surface? A) Intrusive igneous rock. B) Sedimentary rock. C) Metamorphic rock. D) Extrusive igneous rock. Show Answer Correct Answer: D) Extrusive igneous rock. 22. What is the term for loose sediments that are compressed and hardened to form layers of rocks? A) Fossils. B) Magma. C) Sediments. D) Grains. Show Answer Correct Answer: C) Sediments. 23. Igneous rocks are made up of A) Cool Molted magma. B) Cool water. C) Molted Ice. D) Glaciers. E) Hot water. Show Answer Correct Answer: A) Cool Molted magma. 24. FULL FORM OF NIFE A) IRON AND NICKEL. B) IRON AND FERROUS. C) NICKEL AND FERROUS. D) NICKEL AND MAGNESIUM. Show Answer Correct Answer: C) NICKEL AND FERROUS. 25. What type of rocks are used for making roads, houses, and buildings due to their hardness? A) Sedimentary rocks. B) Igneous rocks. C) Metamorphic rocks. D) Extrusive rocks. Show Answer Correct Answer: B) Igneous rocks. ← PreviousNext →Related QuizzesClass 7 Geography Chapter 2 Inside Our Earth Quiz 1Class 7 Geography Chapter 2 Inside Our Earth Quiz 2Class 7 Geography Chapter 2 Inside Our Earth Quiz 3Class 7 Geography Chapter 2 Inside Our Earth Quiz 4Class 7 Geography Chapter 2 Inside Our Earth Quiz 5Class 7 Geography Chapter 2 Inside Our Earth Quiz 6Class 7 Geography Chapter 2 Inside Our Earth Quiz 7Class 7 Geography Chapter 2 Inside Our Earth Quiz 8Class 7 Geography Chapter 2 Inside Our Earth Quiz 9Class 7 Geography Chapter 2 Inside Our Earth Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books