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प्रश्न
Why are the igneous rocks also called the primary rocks?
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उत्तर
The igneous rocks were the first to be formed. They form the basis of formation of other types of rocks. Thus, they are called primary rocks.
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संबंधित प्रश्न
Write True or False. Rewrite the false statement correctly :
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| A. | Basalt | 1. | Anthracite |
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| C. | Coal | 3. | Metamorphic rock |
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Statement (2): Sedimentary rocks are formed by the sediments deposited at different points of time.
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| Group 'A' | Group 'B' | ||
| A. | Granite | 1. | Bedrock |
| B. | Soil layer | 2. | Plutonic rock |
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Statement (2): Sedimentary rocks are formed by the sediments deposited at different points of time.
