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प्रश्न
In what type of rocks do you find fossils and why?
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उत्तर
Fossils are found in sedimentary rocks. Organic remains of plants and animals or their skeletal impressions are called fossils. Fossils help us in fixing the relative ages of rocks.
संबंधित प्रश्न
Discuss the importance of rocks for the construction business.
Fill in the blank
Granite is an example of intrusive ________ rocks.
Write True or False. Rewrite the false statement correctly :
Basalt is an example of an intrusive igneous rock.
What is the difference between the inner and the outer core?
Classify the following rocks by selecting the correct option given below:
Gneiss
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?
Briefly define Mechanical Metamorphism.
Distinguish between the following:
Plutonic and Volcanic rocks.
How are igneous rocks classified on the basis of their chemical composition?
Explain the formation of sedimentary rocks on the basis of agents of formation.
Give one word for the following.
Igneous rocks, which contain a high percentage of silica.
Give one word for the following.
Igneous rocks, which contain a low percentage of silica.
Give one term for the following statement:
Sheet like body of igneous rock.
Distinguish between Intrusive and Extrusive Rocks
Igneous rocks are called primary rocks.
Lava comes out from a volcano.
Intrusive Igneous rocks are also called ______ rocks.
Why are crystalline rocks called so?
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.
