This quiz works best with JavaScript enabled. Home > Indian Geography > Earth > Internal Structure Of Earth – Quiz 1 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Internal Structure Of Earth Quiz 1 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The fourth layer of earth described by Vander Gracht is ..... A) Nucleolus. B) Centrospheres. C) Core. D) None of these. Show Answer Correct Answer: A) Nucleolus. 2. Earth flows normally take place: A) In humid regions. B) In cool regions. C) Both (a) & (b). D) None of these. Show Answer Correct Answer: A) In humid regions. 3. The interior layer of the earth which is subjected to great heat and pressure is known technically as the barysphere. Which part of the earth does it refer to: A) Upper Mantle. B) Asthenosphere. C) Hydrosphere. D) The Core. Show Answer Correct Answer: D) The Core. 4. Oxygen in earth crust is ...... A) 27.70%. B) 37.70%. C) 47.70%. D) 57.70%. Show Answer Correct Answer: A) 27.70%. 5. Temperature: A) Decreases towards the interior of the earth. B) Remains constant with increasing depth. C) Increases towards the interior of the earth. D) None of these. Show Answer Correct Answer: C) Increases towards the interior of the earth. 6. Mohorovic Discontinuity is the difference of density from: A) Core to crust. B) Mental to core. C) Crust to mental. D) Core to mental. Show Answer Correct Answer: C) Crust to mental. 7. The ..... Layer circumscribes the entire planet but is exposed only in ocean basins. A) Lithosphere. B) Mesosphere. C) Sial. D) Sina. Show Answer Correct Answer: D) Sina. 8. Temperature of core could be: A) 4000. B) 5000. C) 6000. D) None of these. Show Answer Correct Answer: A) 4000. 9. Monsoon winds are largely caused by the differences in ..... between the land and the sea: A) Temperature. B) Pressure. C) Both (a) & (b). D) None of these. Show Answer Correct Answer: A) Temperature. 10. Silicon found in earth crust..... A) 17.70%. B) 27.70%. C) 37.70%. D) 47.70%. Show Answer Correct Answer: B) 27.70%. 11. The fourth layer of ultra basic rocks is known as ..... layer. A) Sedimentary. B) Core. C) Mohorovic. D) Gutenberg. Show Answer Correct Answer: D) Gutenberg. 12. ..... of outer layer prevents the core from becoming a liquid or gas. A) Density. B) Molten form. C) Great weight & pressure. D) Heat & Weight. Show Answer Correct Answer: C) Great weight & pressure. 13. Inner core of the earth contains: A) Iron and Magnesium. B) Iron and Nickel. C) Silicon and Iron. D) None of these. Show Answer Correct Answer: B) Iron and Nickel. 14. Radius of solid inner core is ..... miles. A) 740. B) 750. C) 760. D) 770. Show Answer Correct Answer: C) 760. 15. Earthquake waves ..... in velocity upon entering the mentle. A) Change. B) Increase. C) Decrease. D) None of these. Show Answer Correct Answer: B) Increase. 16. When earth and moon are farthest: A) Perigee. B) Quadrature. C) Apogee. D) None of these. Show Answer Correct Answer: C) Apogee. 17. ..... has divided the entire earth into two broad divisions. A) R.A. Dally. B) Arthur Holmes. C) Suess. D) Jeffrey. Show Answer Correct Answer: B) Arthur Holmes. 18. The most rigid and crystallize part of earth is ..... A) Asthenosphere. B) Lithosphere. C) Mesosphere. D) Centrospheres. Show Answer Correct Answer: D) Centrospheres. 19. If an earthquake occurs at 0 degree P and S waves are recorded everywhere to ..... degrees from its source. A) 103. B) 104. C) 105. D) 106. Show Answer Correct Answer: A) 103. 20. Temperature of ..... ranges from 3000 A) Core. B) Lava. C) Magma. D) Mantle. Show Answer Correct Answer: A) Core. Next →Related QuizzesIndian Geography QuizzesInternal Structure Of Earth Quiz 2Internal Structure Of Earth Quiz 3Tectonic Plates QuizThe Earth QuizVolcanoes Quiz 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books