Directions (Qs. 41 to 44): Look at the following table and answer the following: The Importance of Rocks and Minerals
Name | Type of Rock | Use |
Basalt | Igneous | Used in road building |
Calcite | Mineral | Used in cements and mortars. |
Granite | Igneous | Used for building, monuments, and tombstones. |
Marble | Metamorphic | Used In building, floors, tile in bathrooms. |
Obsidian | Igneous | Used in making arrowheads and knives |
Pumice | Igneous | Used in scouring, scrubbing, and polishing materials. |
Quartz | Mineral | Used in making glass, electrical components, and optical lenses. |
Sandstone | Sedimentary | Used in the building industry for house. |
Slate | Metamorphic | Used for roofs, chalkboards. |
A) Marble
B) Diamond
C) Granite
D) Quartz
Correct Answer: D
Solution :
Quartz is used for making optical lenses. Quartz is a delicate mineral and is used for making glass, lenses and other electrical equipment.You need to login to perform this action.
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