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Questions
Name any two characteristics of Igneous Rocks.
State the main characteristics of igneous rocks.
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Solution
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Crystalline Structure: Igneous rocks are usually crystalline, meaning they are made up of interlocking mineral crystals formed from the cooling and solidification of magma or lava.
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Compact and Hard: They are generally very compact and hard, making them durable and resistant to weathering, which is why they are often used in building and construction.
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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 |
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| A. | Basalt | 1. | Anthracite |
| B. | Limestone | 2. | Extrusive igneous |
| C. | Coal | 3. | Metamorphic rock |
| D. | Gneiss | 4. | Sedimentary rock |
