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प्रश्न
Give one difference between Extrusive igneous and Intrusive igneous rocks.
Give two differences between Extrusive Igneous and Intrusive Igneous rocks.
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उत्तर
| S. No. | Extrusive Igneous rocks | Intrusive Igneous rocks |
| 1. | They are created when molten magma cools on the surface of the earth. | When magma solidifies inside the earth's crust, they are created. |
| 2. | These rocks have fine grains, are crystalline, and are smooth. | These are hard rocks with big crystals and a gritty feel. |
| 3. | Example: Basalt | Example: Granite |
Notes
Students should refer to the answer according to their questions.
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संबंधित प्रश्न
Classify the following rocks by selecting the correct option given below:
Gneiss
Classify the following rocks by selecting the correct option given below:
coal
Classify the following rocks by selecting the correct option given below:
granite
Explain this term associated with rocks: Lithification of Rocks.
In what type of rocks do you find fossils and why?
How are chemically-formed sedimentary rocks formed? Give examples.
Classify the following rock: Peat
What is the basis for the classification of rocks?
Give one term for the following statement:
It has a definite chemical composition with its own chemical and physical properties.
How are igneous rocks formed?
An aggregate of minerals on the Earth’s Crust is called ______.
______ into slate caused by thermal metamorphism.
The oldest sedimentary rocks of the world have been identified in ______.
Sedimentary rocks are called stratified rocks.
What is thermal metamorphism?
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.
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 |
