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प्रश्न
What is the basis for the classification of rocks?
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उत्तर
The basis for the classification of rocks are their mineral composition, colour and texture.
संबंधित प्रश्न
Why is coal hard and chunky?
Rocks and minerals play a very important role in our lives.
What problems would you face in their absence?
State two characteristics of the mantle.
Give one difference between Extrusive igneous and Intrusive igneous rocks.
What is sills?
State the types of rocks for the formation of which the following process is involved.
Solidification of magma on the surface of the earth.
Classify the igneous rocks on the basis of their place of origin.
Name the main types of rocks.
Give one word for the following.
Stratified rock formed organically but from vegetative matter-swamps and forests.
Fill in the blanks
______ rocks cover wide area in Peninsular India and Columbia, the Snake Plateau of the U.S.A.
How are sedimentary rocks classified?
Why are the Igneous Rocks called Primary Rocks?
Distinguish between Metamorphic rock and sedimentary rock.
Mention a few specimens of magnificent rock-cut architecture in India?
How are igneous rocks formed?
______ rocks are also called Primary rocks.
What is thermal metamorphism?
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.
Statement (1): Sedimentary rocks consist of many layers.
Statement (2): Sedimentary rocks are formed by the sediments deposited at different points of time.
