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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
Write True or False. Rewrite the false statement correctly :
Basalt is an example of an intrusive igneous rock.
Classify the following rocks by selecting the correct option given below:
granite
How are igneous rocks formed?
State two points of distinction between rocks and minerals.
Which rocks are associated with fossil fuels?
Name the rocks which are most widespread on the earth.
Name the three stages of lithification of Sedimentary rocks.
How are sedimentary rocks classified on the basis of their formation?
Give a detailed account of lithiflcation of sedimentary rocks.
Differentiate between Rock and Mineral
State the properties of metamorphic rocks.
Give one term for the following statement:
Formed when mud layers compacted under great pressure composing 80% of this rock.
Why are the Igneous Rocks called Primary Rocks?
Fill in the blank below:
______are intrusions of igneous rock that are vertical in shape
______ is the kind of metamorphic rock using which Taj Mahal was built.
Volcanic mountains are covered with sedimentary rocks.
______ rocks are also called Primary rocks.
Match the following.
| A. | Basalt | 1. | Anthracite |
| B. | Limestone | 2. | Extrusive igneous |
| C. | Coal | 3. | Metamorphic rock |
| D. | Gneiss | 4. | Sedimentary rock |
Statement (1): Sedimentary rocks consist of many layers.
Statement (2): Sedimentary rocks are formed by the sediments deposited at different points of time.
