Class 7 Geography Chapter 2 Inside Our Earth Quiz 14 (25 MCQs)

Quiz Instructions

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1. Example for Sedimentary rocks is?
2. Rocks roll down, crack, and hit each other and are broken down into small fragments. These smaller particles are called
3. Sources of Noise Pollution
4. Which rock is an example of a sedimentary rock made from grains of sand?
5. The average density of the crust is
6. The word ' Crust' define as-
7. Which of the following rocks is formed by the metamorphosis of granite?
8. The mantle is made up of silicon and magnesium.
9. The best quality iron ore is called
10. Magma solidifies to become ..... rock.
11. The process of transformation of the rock from one form to another is called
12. Most of the information about the earth's structure and interior is based on
13. Slate is formed from
14. The process of transformation of rocks from one to another is called-
15. What type of minerals are found in the continental masses?
16. The oceanic crust is only 5 km thick, and it is known as sima. Which minerals is it made of?
17. There are how many layers of earth
18. Where are intrusive igneous rocks formed?
19. What is the abbreviation for the main composition of the continental mass?
20. What type of rocks can change into metamorphic rocks under great heat and pressure?
21. Igneous, sedimentary and metamorphic rocks are usually composed of
22. The core is also called .....
23. Any natural mass of mineral matter that makes up the earths crust is called .....
24. 1)When Molten magma cools, it becomes solid and above the earth it is called lava.2)On cooling the rock thus formed are called Sedimentary rocks.
25. The continantal crust is also called sima and the oceanic crust is also called sial