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प्रश्न
What are the causes of metamorphism?
उत्तर
Main causes are great temperature and pressure beneath the earth’s crust, which changes the original texture and form of the rocks into dense, crystalline and fine grained rocks.
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संबंधित प्रश्न
Why is coal hard and chunky?
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: ______________.
Write True or False. Rewrite the false statement correctly :
Minerals are organic substances.
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:
basalt
Classify the following rocks by selecting the correct option given below:
limestone
How are rocks different from minerals?
State the types of rocks for the formation of which the following process is involved.
Decomposition of organic matter at different stages and over different periods of time.
Sedimentary rocks are also called stratified rocks. Why?
Classify the following rock: Coal
Classify the following rock: Peat
Classify the following rock: Rock salt
Fill in the blanks
______ rock contain a low percentage of silica and a high percentage of basic oxides.
Why are the Igneous Rocks called Primary Rocks?
Which types of rocks are predominantly found at the following locations?
- Central Maharashtra
- South Konkan
- Vidarbha
______ is known as the primary rocks.
Choose the incorrect statement from the following.
Diamond is an example of _______ rock.
Mention a few specimens of magnificent rock-cut architecture in India?
Match the following.
| A. | Granite | 1. | Bed rock |
| B. | Soil layer | 2. | Plutonic rock |
| C. |
Barren island |
3. | Strip farming |
| D. | Soil conservation | 4. | Active Volcano |
