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प्रश्न
Give reasons
Limestone is changed into marble.
थोडक्यात उत्तर
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उत्तर
Limestone is changed into marble because igneous and sedimentary rocks change into metamorphic rocks under a great heat and pressure.
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Rocks and Minerals
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संबंधित प्रश्न
How are extrusive and intrusive rocks formed?
What are the uses of rocks?
What are metamorphic rocks?
Tick the correct answer
Gold, petroleum and coal are examples of
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 | ||
What are minerals?
How are minerals useful for mankind?
What is the mineral most commonly used in the following object?
What is the mineral most commonly used in the following object?
What is the mineral most commonly used in the following object?
