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प्रश्न
What are the uses of rocks?
संक्षेप में उत्तर
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उत्तर
Hard rocks are used for making roads, houses and buildings. Stones are used in many games, such as seven stones (pitthoo), hopscotch (stapu/kitkit), Five stones (gitti).
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Rocks and Minerals
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The rock which is made up of molten magma is
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The thinnest layer of the earth is
Match the following
| A | B | ||
| (i) | Core | (a) | Earth’s surface |
| (ii) | Minerals | (b) | Used for roads and buildings |
| (iii) | Rocks | (c) | Made of silicon and alumina |
| (iv) | Clay | (d) | Has definite chemical composition |
| (v) | Sial | (e) | Innermost layer |
| (f) | Changes into slate | ||
| (g) | Process of transformation of the rock | ||
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What happens when igneous and sedimentary rocks go under great heat and pressure?
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Mention the various types of rocks.
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What is the mineral most commonly used in the following object?
