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प्रश्न
Why are Sedimentary rocks called the Secondary rocks?
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उत्तर
Sedimentary rocks are called Secondary rocks or derived – rocks because they are derived by the denudation of other rocks.
संबंधित प्रश्न
Fill in the blank
Conglomerate is an example of _____________ rocks.
State two characteristics of the mantle.
The photograph shows you a type of rock that is widely used in the construction industry.
- Name the type of rock.
- How is it formed?
Distinguish between the following:
Plutonic and Volcanic rocks.
Describe how igneous rocks are formed.
What is meant by the term ‘metamorphism’?
Give one word for the following.
The outer layer of the earth.
Give one word for the following.
Stratified rock formed organically but from vegetative matter-swamps and forests.
Give one example of an area of: Igneous rocks
How are sedimentary rocks classified?
Give one term for the following statement:
Formed when mud layers compacted under great pressure composing 80% of this rock.
Give reasons for the following
Man’s habitat is the biosphere and not the lithosphere in the true sense.
Statement (1): Sedimentary rocks consist of many layers.
Statement (2): Sedimentary rocks are formed by the sediments deposited at different points of time.
The two types of Intrusive Igneous rocks are ______.
______ rocks are also called Primary rocks.
The oldest sedimentary rocks of the world have been identified in ______.
Match the following.
| A. | Basalt | 1. | Anthracite |
| B. | Limestone | 2. | Extrusive igneous |
| C. | Coal | 3. | Metamorphic rock |
| D. | Gneiss | 4. | Sedimentary rock |
| A | B | ||
| 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 |
