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प्रश्न
What are the causes of metamorphism?
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उत्तर
The main causes are great temperature and pressure beneath the earth’s crust, which change the original texture and form of the rocks into dense, crystalline, and fine-grained rocks.
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संबंधित प्रश्न
Discuss the importance of rocks for the construction business.
Fill in the blank
A category of rock which is formed by the alteration of the parent rock due to heat and pressure is called: ______________.
State two characteristics of the mantle.
Classify the following rocks by selecting the correct option given below:
granite
Classify the following rocks by selecting the correct option given below:
marble
How are sedimentary rocks formed?
What are metamorphic rocks?
Give one word for the following.
Stratified rock formed organically but from vegetative matter-swamps and forests.
Give one word for the following.
Igneous rocks, which contain a high percentage of silica.
Fill in the blanks
The interior layer is the core, which is made up mainly of iron and nickel, and is called ______.
Fill in the blanks
______ is the best example of the wind deposited stratified rock.
Give one example of an area of: Sedimentary rocks in India
Give one term for the following statement:
Formed by evaporation in saline lakes.
Distinguish between Intrusive and Extrusive Rocks
Find the difference between:
Igneous and sedimentary rocks
Chemical sedimentary rocks are found in the beds of reservoirs.
Which Soils are formed by the weathering of metamorphic rocks?
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 |
