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प्रश्न
Why are the igneous rocks also called the primary rocks?
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उत्तर
The igneous rocks were the first to be formed. They form the basis of formation of other types of rocks. Thus, they are called primary rocks.
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संबंधित प्रश्न
Fill in the blank
Sedimentary rocks such as limestone change into ___________.
Classify the following rocks by selecting the correct option given below:
limestone
Name three types of rocks.
Name two important landforms made by Igneous Rocks.
Which agents are responsible for deposition of sediments?
Distinguish between rocks and minerals.
Name different types of sedimentary rocks.
What physical agents are involved in the sedimentary rocks?
Give some examples of metamorphic rocks formed from sedimentary and igneous rocks.
Classify the following rock: Coal
Classify the following rock: Basalt
How are sedimentary rocks classified?
Find the difference between:
Igneous and sedimentary rocks
Distinguish between Metamorphic rock and sedimentary rock.
Which Soils are formed by the weathering of metamorphic rocks?
______ into slate caused by thermal metamorphism.
Statement (1): Sedimentary rocks consist of many layers.
Statement (2): Sedimentary rocks are formed by the sediments deposited at different points of time.
Match the following.
| A. | Basalt | 1. | Anthracite |
| B. | Limestone | 2. | Extrusive igneous |
| C. | Coal | 3. | Metamorphic rock |
| D. | Gneiss | 4. | Sedimentary rock |
Match the following:
| A. | Basalt | 1. | Anthracite |
| B. | Limestone | 2. | Extrusive igneous |
| C. | Coal | 3. | Metamorphic rock |
| D. | Gneiss | 4. | Sedimentary rock |
