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प्रश्न
Distinguish between Regional and Contact metamorphism.
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उत्तर
Regional metamorphism When metamorphism of bed rocks takes place over a very large area, it is called Regional metamorphism. It is usually caused by the movement of the earth’s crust. Contact metamorphism when it takes place over a small area, it is called Local Metamorphism or Contact Metamorphism. It commonly occurs when hot magma comes in contact with other rocks.
संबंधित प्रश्न
Why is diamond clear and hard while graphite is soft?
Rocks and minerals play a very important role in our lives.
What problems would you face in their absence?
Fill in the blank
Sedimentary rocks such as limestone change into ___________.
Give an example of intrusive igneous rock.
Classify the following rocks by selecting the correct option given below:
sandstone
Give two examples of sedimentary rocks.
What processes are involved in the formation of Igneous Rocks?
Distinguish between the following:
Acid Igneous Rocks and Basic Igneous Rocks.
Describe how igneous rocks are formed.
What is meant by a rock?
Classify the following rock: Coal
Classify the following rock: Slate
Which of the following monuments are built-in igneous rock?
- The Taj Mahal
- Fort Raigad
- The Red Fort
- Ellora Sculpture
How are igneous rocks formed?
What are metamorphic rocks?
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 |
Statement (1): Sedimentary rocks consist of many layers.
Statement (2): Sedimentary rocks are formed by the sediments deposited at different points of time.
