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प्रश्न
State the chief characteristics of metamorphic rocks.
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उत्तर
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They are harder and more compact than their original form.
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Most of them are impermeable; they do not allow water to percolate through them.
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They do not have fossils because fossils in sedimentary rocks are destroyed during metamorphism.
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They are formed due to a change in texture and composition of pre-existing rocks.
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New minerals are formed during the process of metamorphism.
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संबंधित प्रश्न
Why is diamond clear and hard while graphite is soft?
Fill in the blank
Sedimentary rocks are formed from _____________ accumulated over long periods.
Give an example of intrusive igneous rock.
Classify the following rocks by selecting the correct option given below:
coal
What is sills?
Briefly define Mechanical Metamorphism.
Distinguish between the following:
Plutonic and Volcanic rocks.
Distinguish between the following:
Calcarious and Carbonacious rocks.
How are sedimentary and igneous rocks formed?
Distinguish between Regional and Contact metamorphism.
Classify the following rock: Limestone
Classify the following rock: Loess
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
Extrusive rocks are also known as ______ rocks.
Find the difference between:
Igneous and sedimentary rocks
What are metamorphic rocks?
Parent Rock is converted to loose Rock by ______.
Explain Dynamic Metamorphism.
Match the following:
| Group 'A' | Group 'B' | ||
| A. | Granite | 1. | Bedrock |
| B. | Soil layer | 2. | Plutonic rock |
| C. | Barren island | 3. | Strip farming |
| D. | Soil conservation | 4. | Active Volcano |
Match the following:
| A. | Basalt | 1. | Anthracite |
| B. | Limestone | 2. | Extrusive igneous |
| C. | Coal | 3. | Metamorphic rock |
| D. | Gneiss | 4. | Sedimentary rock |
