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प्रश्न
Why are the Igneous Rocks called Primary Rocks?
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उत्तर
It is believed that the earth was in a molten state in the beginning Igneous rocks were the first rocks to be formed due to cooling and solidification of molten matter. Hence these are called Primary Rocks.
संबंधित प्रश्न
What is crust?
Give an example of intrusive igneous rock.
Classify the following rocks by selecting the correct option given below:
sandstone
Classify the following rocks by selecting the correct option given below:
schist
Name any three elements of the earth’s crust.
Mention any two characteristics of Sedimentary Rocks.
Briefly define Mechanical Metamorphism.
Name different types of sedimentary rocks.
Give one word for the following.
A sedimentary rock, which is composed of microscopically fine, soft and smooth particles.
Fill in the blanks
Extrusive rocks are also known as ______ rocks.
Give one example of an area of: Igneous rocks
Distinguish between Intrusive and Extrusive Rocks
How are igneous rocks formed?
Which Soils are formed by the weathering of metamorphic rocks?
Rocks are classified into ______ types.
The word Ignis means rock.
Oldest Sedimentary rocks of the world has been identified in Green land.
The world Igneous is derived from the Latin word ______ meaning ______.
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. | Granite | 1. | Bed rock |
| B. | Soil layer | 2. | Plutonic rock |
| C. |
Barren island |
3. | Strip farming |
| D. | Soil conservation | 4. | Active Volcano |
