This quiz works best with JavaScript enabled. Home > Class 7 > Class 7 Geography Chapter 2 Inside Our Earth – Quiz 20 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Geography Chapter 2 Inside Our Earth Quiz 20 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The main mineral constituents of the crust are? A) Silica and ferrous. B) Alumina and nickel. C) Silica and alumina. D) None of the above. Show Answer Correct Answer: C) Silica and alumina. 2. Which layer of the Earth extends up to a depth of 2900 km below the crust? A) Mantle. B) Core. C) Crust. D) Sima. Show Answer Correct Answer: A) Mantle. 3. The inner most layer is? A) Mantle. B) Crust. C) Rock. D) Core. Show Answer Correct Answer: D) Core. 4. The mantle is about ..... km thick. A) 1500. B) 2000. C) 2900. D) 3900. Show Answer Correct Answer: C) 2900. 5. Rocks formed by cooling of molten magma on the Earth's surface are called ..... A) Intrusive rocks. B) Extrusive rocks. C) Sedimentary rocks. D) Metamorphic rocks. Show Answer Correct Answer: B) Extrusive rocks. 6. Man mineral constituent in core is A) Unlucky. B) Sima. C) Love. D) None of the above. Show Answer Correct Answer: C) Love. 7. WHICH ROCK IS DIVIDED INTO INTRUSIVE AND EXTRUSIVE ROCKS? A) IGNEOUS ROCKS. B) SEDIMENTARY ROCKS. C) METAMORPHIC ROCKS. D) None of the above. Show Answer Correct Answer: A) IGNEOUS ROCKS. 8. The Continental crust is composed of A) UNLUCKY. B) SIMA. C) LOVE. D) All of these. Show Answer Correct Answer: A) UNLUCKY. 9. What is the diameter of Kola Superdeep Borehole? A) 25 cm. B) 13 cm. C) 22 cm. D) 23 cm. Show Answer Correct Answer: D) 23 cm. 10. Igneous is a ..... word meaning ..... A) Latin, fire. B) Greek, Stones. C) French, Water. D) Latin, Hot air. Show Answer Correct Answer: A) Latin, fire. 11. Igneous is word of which language? A) Greece. B) Spanish. C) Latin. D) Arabian. Show Answer Correct Answer: C) Latin. 12. How many layers are there in earth? A) 3. B) 5. C) 2. D) None of the above. Show Answer Correct Answer: A) 3. 13. Which process is necessary for the formation of igneous rocks? A) Erosion. B) Deposition. C) Metamorphism. D) Solidification. Show Answer Correct Answer: D) Solidification. 14. Ammonia is a ..... ? A) Queen Elizabeth 2's Sister (no really I am correct). B) Baby Food. C) Mineral. D) Rock. Show Answer Correct Answer: C) Mineral. 15. Why is the inner core solid? A) Its unknown. B) What it's made of. C) The pressure. D) It is colder than the outer core. Show Answer Correct Answer: C) The pressure. 16. Hard woood trees found in Deciduos forests are ..... A) Rosewood. B) Sal. C) Ebony. D) Mahogany. Show Answer Correct Answer: B) Sal. 17. It is estimated that the whole of the ocean crust is about ..... years old. A) 180 million. B) 100 million. C) 50 million. D) 25 million. Show Answer Correct Answer: A) 180 million. 18. Which of the following are the examples of metamorphic rocks A) Chalk. B) Siltstone. C) Marble. D) Breccia. Show Answer Correct Answer: C) Marble. 19. What is the radius of inner core? A) 3550 km. B) 2548 km. C) 3650 km. D) 3500 km. Show Answer Correct Answer: D) 3500 km. 20. Aggregates of minerals are known as A) Elements. B) Minerals. C) Sediments. D) Rocks. Show Answer Correct Answer: D) Rocks. 21. The deepest hole engineers have dug is ..... km deep. A) 6000 km. B) 4 km. C) 6 km. D) 5 km. Show Answer Correct Answer: C) 6 km. 22. The highest point on the earth's surface is the ..... A) Mount Kilimanjaro. B) Mount K2. C) Mount Everest. D) Mount Kanchenjunga. Show Answer Correct Answer: C) Mount Everest. 23. Most widely available rocks A) Igneous. B) Sedimentary. C) Metamorphic. D) None of the above. Show Answer Correct Answer: B) Sedimentary. 24. The temperature inside the innermost part of the Earth is estimated to be- A) 3700$^\circ$C. B) 10000$^\circ$C. C) 5000$^\circ$C. D) None of the above. Show Answer Correct Answer: C) 5000$^\circ$C. 25. The main mineral constituents found in the Continental crust is? A) Love. B) Ferrous. C) Sima. D) Unlucky. Show Answer Correct Answer: D) Unlucky. ← 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