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प्रश्न
Distinguish between the following:
Plutonic and Volcanic rocks.
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उत्तर
| Plutonic rocks | Volcanic Rocks |
| These are intrusive igneous rocks. | These are extrusive igneous rocks. |
| These cool down very slowly due to heat in the interior. | These cool down abruptly due to the lower temperature in the surface region. |
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संबंधित प्रश्न
Discuss the importance of rocks for the construction business.
Classify the following rocks by selecting the correct option given below:
coal
Classify the following rocks by selecting the correct option given below:
limestone
The photograph shows you a type of rock that is widely used in the construction industry.
- Name the type of rock.
- How is it formed?
What are known as metamorphic rocks?
Briefly define Mechanical Metamorphism.
How are sedimentary rocks classified on the basis of their formation?
Classify the following rock: Clay
Classify the following rock: Granite
Give one example of an area of: Metamorphic rocks,
What is the basis for the classification of rocks?
Why are Sedimentary rocks called the Secondary rocks?
Give an example of a Plutonic rock.
Give reasons for the following
Extrusive rocks generally have small crystals.
Oldest Sedimentary rocks of the world has been identified in Green land.
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.
| Group A | Group B | ||
| 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 |
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 |
