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प्रश्न
Distinguish between the following: Sills and Dykes.
उत्तर
| Sills | Dykes |
| The collection of magma between layers of rocks is called sill. | The fillings of magma in the cracks or fissures of rocks are called dykes. |
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| A. | Basalt | 1. | Anthracite |
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| A. | Basalt | 1. | Anthracite |
| B. | Limestone | 2. | Extrusive igneous |
| C. | Coal | 3. | Metamorphic rock |
| D. | Gneiss | 4. | Sedimentary rock |
