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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
Why is coal hard and chunky?
Fill in the blank
Conglomerate is an example of _____________ rocks.
What is the difference between the inner and the outer core?
How are rocks different from minerals?
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?
Describe the process that leads to exfoliation.
What are known as metamorphic rocks?
Distinguish between the following:
Calcarious and Carbonacious rocks.
State the types of rocks for the formation of which the following process is involved.
Solidification of magma on the surface of the earth.
Distinguish between Regional and Contact metamorphism.
Classify the following rock: Peat
Classify the following rock: Marble
Give one word for the following.
The lower part of ocean floor, comprising mainly of silica.
Give one word for the following.
Stratified rock formed organically but from vegetative matter-swamps and forests.
Which of the following monuments are built-in igneous rock?
- The Taj Mahal
- Fort Raigad
- The Red Fort
- Ellora Sculpture
Match the following:
| A. | Basalt | 1. | Anthracite |
| B. | Limestone | 2. | Extrusive igneous |
| C. | Coal | 3. | Metamorphic rock |
| D. | Gneiss | 4. | Sedimentary rock |
Classify and explain the rocks.
Mention a few specimens of magnificent rock-cut architecture in India?
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.
