This quiz works best with JavaScript enabled. Home > Class 7 > Class 7 Geography Chapter 2 Inside Our Earth – Quiz 1 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Geography Chapter 2 Inside Our Earth Quiz 1 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Rocks are made of different ..... A) Minerals. B) Poisons. C) Soil. D) Water. Show Answer Correct Answer: A) Minerals. 2. REMAINS OF DEAD PLANTS AND ANIMALS = A) MINERALS. B) FOSSILS. C) SEVEN STONES. D) CRUST. Show Answer Correct Answer: B) FOSSILS. 3. Igneous rocks are formed when molten magma cools and becomes solid, and they are also known as primary rocks because they are the first type of rocks to be formed. Which are the two types of primary/igneous rocks? A) Igneous and sedimentary. B) Intrusive and extrusive. C) Intrusive and igneous. D) Extrusive and igneous. Show Answer Correct Answer: B) Intrusive and extrusive. 4. What is the term for any natural mass of mineral matter that makes up the earth's crust? A) Mineral. B) Rock. C) Soil. D) Sand. Show Answer Correct Answer: B) Rock. 5. The main mineral constituents of the continental mass are ..... A) Silica and magnesium. B) Silica and aluminium. C) Silica and nickel. D) None of the above. Show Answer Correct Answer: B) Silica and aluminium. 6. The inner core is made up of A) Iron and nickel. B) Iron. C) Silica. D) None of the above. Show Answer Correct Answer: A) Iron and nickel. 7. Lithosphere is ..... A) Crust. B) Mantle. C) Core. D) None of the above. Show Answer Correct Answer: A) Crust. 8. Red Fort is made up of A) Red sandstone. B) Black Sandstone. C) Red marble. D) Black Marble. Show Answer Correct Answer: A) Red sandstone. 9. Sometimes the molten magma cools down deep inside the earth's crust and forms rocks. Such rocks are called ..... A) Intrusive igneous rocks. B) Extrusive igneous rocks. C) All the above. D) None of the above. Show Answer Correct Answer: A) Intrusive igneous rocks. 10. Sandstone is an example of: A) Igneous Rocks. B) Sedimentary Rocks. C) Metamorphic Rocks. D) Intrusive Igneous Rocks. Show Answer Correct Answer: B) Sedimentary Rocks. 11. What happens when igneous and sedimentary rocks go under heat and pressure? A) They change into graphite. B) They change into metamorphic rocks. C) They change into fossils. D) They change into minerals. Show Answer Correct Answer: B) They change into metamorphic rocks. 12. Igneous derived from the Latin word ..... meaning ..... ? A) What does a clock do when it's hungry? It goes back for seconds!. B) Fire, Ice. C) Fire, Fire. D) I wanna make a joke about sodium, but Na . Show Answer Correct Answer: C) Fire, Fire. 13. Which rocks are known as primary rocks? A) Igneous rocks. B) Sedimentary rocks. C) Metamorphic rocks. D) None of these. Show Answer Correct Answer: A) Igneous rocks. 14. The innermost layer of the Earth is ..... A) Crust. B) Core. C) Mantle. D) All of thse. Show Answer Correct Answer: B) Core. 15. The constituents of oceanic crust are- A) Silica, Magnesium. B) Silica, Alumina. C) Silica, Phosphorus. D) Iron, Nickel. Show Answer Correct Answer: A) Silica, Magnesium. 16. The molten magma cools down deep inside the earth's crust. Solid rocks so formed are called ..... A) Intrusive igneous rocks. B) Extrusive rocks. C) Metamorphic Rock. D) None of the above. Show Answer Correct Answer: A) Intrusive igneous rocks. 17. How many types of rocks are there? A) Two. B) Three. C) Four. D) Five. Show Answer Correct Answer: B) Three. 18. The molten rock materials are called A) Magma. B) Lava. C) Coal. D) Volcano. Show Answer Correct Answer: A) Magma. 19. Radius of the earth? A) 6137 km. B) 6371 km. C) 6731 km. D) 7631 km. Show Answer Correct Answer: B) 6371 km. 20. What type of rocks are used for making grinding stones to prepare pastes or powders of spices and grains? A) Igneous rocks. B) Sedimentary rocks. C) Metamorphic rocks. D) Extrusive rocks. Show Answer Correct Answer: C) Metamorphic rocks. 21. Natural mass of mineral matter that makes up the earth's crust is called A) Rocks. B) Marble. C) Sandstone. D) None of the above. Show Answer Correct Answer: A) Rocks. 22. Which layer has a radius of about 3500 km? A) Mantle. B) Outer core. C) Crust. D) Unlucky. Show Answer Correct Answer: B) Outer core. 23. In search for oil engineers have dug a hole about: A) 3 km. B) 4 km. C) 5 km. D) 6 km. Show Answer Correct Answer: D) 6 km. 24. Which is the thinnest layer of the Earth? A) Crust. B) Mantle. C) Core. D) None of the above. Show Answer Correct Answer: A) Crust. 25. The last layer is known as A) Crust. B) Mantle. C) Core. D) None of the above. Show Answer Correct Answer: C) Core. 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