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Question
Name the main types of rocks.
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Solution
On the basis of their mode of formation, rocks are divided into three types :
- Igneous rocks
- Sedimentary rocks
- Metamorphic rocks.
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Statement (1): Sedimentary rocks consist of many layers.
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Statement (2) : Sedimentary rocks are formed by the sediments deposited at different points of time
Match the following.
| A. | Basalt | 1. | Anthracite |
| B. | Limestone | 2. | Extrusive igneous |
| C. | Coal | 3. | Metamorphic rock |
| D. | Gneiss | 4. | Sedimentary rock |
Match the following.
| A. | Basalt | 1. | Anthracite |
| B. | Limestone | 2. | Extrusive igneous |
| C. | Coal | 3. | Metamorphic rock |
| D. | Gneiss | 4. | Sedimentary rock |
