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प्रश्न
Give two examples of metamorphic rocks.
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उत्तर
- Marble: Formed when limestone is subjected to heat and pressure. It becomes harder, crystalline and is often used in sculpture and building.
- Slate: Formed from shale under heat and pressure. It becomes fine-grained, splits into smooth layers, and is used for roofing and flooring.
संबंधित प्रश्न
Differentiate between SIAL and SIMA.
Which agents are responsible for deposition of sediments?
Explain this term associated with rocks: Extrusive Igneous Rocks
Distinguish between the following:
Sills and Dykes.
Explain the formation of sedimentary rocks on the basis of agents of formation.
How are sedimentary and igneous rocks formed?
What is meant by the term ‘metamorphism’?
Classify the following rock: Shale
Give one word for the following.
Stratified rock formed organically but from vegetative matter-swamps and forests.
How are sedimentary rocks classified?
State the properties of metamorphic rocks.
Give one term for the following statement:
It has a definite chemical composition with its own chemical and physical properties.
Give one term for the following statement:
Rounded or sub-rounded fragments, usually water-born cobbles, pebble and gravel, cemented together by a matrix of calcium carbonate, silica, etc.
Which of the following monuments are built-in igneous rock?
- The Taj Mahal
- Fort Raigad
- The Red Fort
- Ellora Sculpture
Volcanic mountains are covered with sedimentary rocks.
Choose the incorrect statement from the following.
This is the storehouse of rocks.
Out of 2,000 different types, only ______ are the basic minerals commonly found all over the earth.
Match the following.
| A. | Basalt | 1. | Anthracite |
| B. | Limestone | 2. | Extrusive igneous |
| C. | Coal | 3. | Metamorphic rock |
| D. | Gneiss | 4. | Sedimentary rock |
