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प्रश्न
Name any two characteristics of Igneous Rocks.
State the main characteristics of igneous rocks.
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उत्तर
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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.
संबंधित प्रश्न
How are sedimentary rocks formed?
Give two examples of metamorphic rocks.
How are sedimentary rocks classified on the basis of their formation?
State the chief characteristics of metamorphic rocks.
Distinguish between Regional and Contact metamorphism.
Classify the following rock: Coal
Classify the following rock: Rock salt
Give one word for the following.
Igneous rocks, which contain a high percentage of silica.
Fill in the blanks
______ is formed, when the angular and coarse grains of some durable minerals are cemented together.
Fill in the blanks
______ rock contain a low percentage of silica and a high percentage of basic oxides.
Give one example of an area of: Igneous rocks
Why fossils are preserved in Sedimentary and not in Igneous rocks?
______ is the kind of metamorphic rock using which Taj Mahal was built.
How are igneous rocks formed?
What are metamorphic rocks?
Explain about Petrology.
Statement (1): Sedimentary rocks consist of many layers.
Statement (2): Sedimentary rocks are formed by the sediments deposited at different points of time.
Statement (1): Sedimentary rocks consist of many layers.
Statement (2): Sedimentary rocks are formed by the sediments deposited at different points of time.
Statement (1): Sedimentary rocks consist of many layers.
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 |
