This quiz works best with JavaScript enabled. Home > Class 7 > Class 7 Geography Chapter 2 Inside Our Earth – Quiz 28 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Geography Chapter 2 Inside Our Earth Quiz 28 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. We have to dig a ..... km deep hole to reach the centre of earth A) 6000. B) 60000. C) 5000. D) 70000. Show Answer Correct Answer: A) 6000. 2. To reach centre of earth, we have to dig ..... km on the ocean floor. A) 5000. B) 100. C) 6000. D) None of the above. Show Answer Correct Answer: C) 6000. 3. Sial extends as far as 35 km. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 4. When Igneous and Sedimentary rocks are under pressure ..... rocks are formed A) Igneous rocks. B) Sedimentary rocks. C) Metamorphic rocks. D) None of the above. Show Answer Correct Answer: C) Metamorphic rocks. 5. In Sima-Define yes A) Silica. B) Sodium. C) Silver. D) None of the above. Show Answer Correct Answer: A) Silica. 6. Granite is an example of: A) Igneous Rocks. B) Sedimentary Rocks. C) Metamorphic Rocks. D) Sediment. Show Answer Correct Answer: A) Igneous Rocks. 7. ..... kind of igneous rocks have fine grained structures. A) Extrusive igneous. B) Intrusive igneous. C) Sedimentary. D) None of these. Show Answer Correct Answer: A) Extrusive igneous. 8. How do scientists know the earth has layers? A) Grandpa told them. B) Seismic wave data and direct evidence from rock samples. C) From drilling into the earth. D) Samples from the lava and magma of volcanos. Show Answer Correct Answer: B) Seismic wave data and direct evidence from rock samples. 9. Core is having average density of A) 5.5g per cubic cm. B) 13.0g per cubic cm. C) All the above. D) None of the above. Show Answer Correct Answer: B) 13.0g per cubic cm. 10. Metamorphic rocks may melt and erupt to form A) Sedimentary rocks. B) Extrusive Igneous rocks. C) Igneous rocks. D) Ore. Show Answer Correct Answer: C) Igneous rocks. 11. What is the core also known as? A) Love. B) Pizza. C) Unlucky. D) Sedimentary rock. Show Answer Correct Answer: A) Love. 12. The rock used for making tiles and bricks is A) Shale. B) Limestone. C) Sandstone. D) Granite. Show Answer Correct Answer: A) Shale. 13. Lava is the molten magma from ..... of the earth's surface. A) Exterior. B) Interior. C) All the above. D) None of the above. Show Answer Correct Answer: B) Interior. 14. The layer between the crust and the core is called A) Crust. B) Mantle. C) Core. D) None of the above. Show Answer Correct Answer: B) Mantle. 15. The uppermost layer of Earth is called A) Core. B) Crust. C) Mantle. D) None of the above. Show Answer Correct Answer: B) Crust. 16. What are naturally occurring substances with specific physical properties and chemical composition called? A) Minerals. B) Fossils. C) Sediments. D) Elements. Show Answer Correct Answer: A) Minerals. 17. The process of transformation of rocks is called ..... A) Rocky. B) The life cycle of rocks. C) Rock cycle. D) Life cycle. Show Answer Correct Answer: C) Rock cycle. 18. What process involves the cooling and solidification of molten magma to form igneous rocks on the Earth's surface? A) Weathering. B) Erosion. C) Rock cycle. D) Sedimentation. Show Answer Correct Answer: C) Rock cycle. 19. What type of rock changes into another type under certain conditions in a cyclic manner? A) Sedimentary rock. B) Igneous rock. C) Metamorphic rock. D) Fossilized rock. Show Answer Correct Answer: C) Metamorphic rock. 20. How much deep is the mine of south africa? A) 4 km. B) 3 km. C) 6 km. D) 5 km. Show Answer Correct Answer: A) 4 km. 21. The oceanic crust mainly consists of which of these minerals A) Silica and alumina. B) Silica and magnesium. C) Nickel and iron. D) None of these. Show Answer Correct Answer: B) Silica and magnesium. 22. The deepest mine in the world is located ..... and is ..... km deep A) Russia, 6. B) South Africa, 6. C) South Africa, 4. D) Russia, 4. Show Answer Correct Answer: C) South Africa, 4. 23. NAME THE HOTTEST LAYER OF EARTH A) CRUST. B) MENTLE. C) CORE. D) NONE OF THE ABOVE. Show Answer Correct Answer: C) CORE. 24. What type of rocks are transformed into molten magma under high heat and pressure in the Earth's interior? A) Sedimentary rocks. B) Metamorphic rocks. C) Intrusive igneous rocks. D) Extrusive igneous rocks. Show Answer Correct Answer: B) Metamorphic rocks. 25. What is the depth of the mantle below the crust A) 1609 km. B) 2900. C) 1609. D) 2900 km. Show Answer Correct Answer: D) 2900 km. ← 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