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प्रश्न
Find the difference between:
Igneous and sedimentary rocks
Give three points of difference between the igneous rocks and the sedimentary rocks.
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उत्तर
| Igneous Rocks | Sedimentary Rocks |
| These are formed due to the cooling and solidification of ‘magma’ and ‘lava’. | These rocks are formed due to continuous deposition and compaction of weathered pieces of rocks transported to various places by wind, glaciers, rivers, etc. |
| These are hard, homogeneous and heavy rocks. | These are brittle, layered and light in weight. |
| They lack fossils. | They show the presence of fossils. |
| Example: Basalt, Granite, etc. | Example: Sandstone, limestone, etc. |
Notes
Students should refer to the answer according to their questions.
APPEARS IN
संबंधित प्रश्न
Discuss the importance of rocks for the construction business.
Fill in the blank
Sedimentary rocks are formed from _____________ accumulated over long periods.
Write True or False. Rewrite the false statement correctly :
Minerals are organic substances.
Write True or False. Rewrite the false statement correctly :
Basalt is an example of an intrusive igneous rock.
Write True or False. Rewrite the false statement correctly :
Rocks are used in construction industries.
What is crust?
Differentiate between SIAL and SIMA.
State two characteristics of the mantle.
What is the difference between the inner and the outer core?
State two characteristics of Basic Igneous Rocks.
Name the rocks which are most widespread on the earth.
Give two examples of metamorphic rocks.
Explain this term associated with rocks: Lithification of Rocks.
Distinguish between the following:
Calcarious and Carbonacious rocks.
State the types of rocks for the formation of which the following process is involved.
Formation of large crystals, coarse texture and slow cooling and compaction.
How are sedimentary rocks formed?
What are the causes of metamorphism?
Give a detailed account of lithiflcation of sedimentary rocks.
Differentiate between Rock and Mineral
Classify the following rock: Basalt
Give one word for the following.
The core of the earth occupied by rock in iron and nickel.
Fill in the blanks
The interior layer is the core, which is made up mainly of iron and nickel, and is called ______.
Fill in the blanks
______ rocks cover wide area in Peninsular India and Columbia, the Snake Plateau of the U.S.A.
Give one example of an area of: Igneous rocks
Give reasons for the following
Extrusive rocks generally have small crystals.
______ is known as the primary rocks.
Distinguish between Metamorphic rock and sedimentary rock.
Kola sample title is located in ______.
Mention the types of rocks based on formation?
The types of rocks based on formation are
Mention a few specimens of magnificent rock-cut architecture in India?
What are metamorphic rocks?
Rocks are classified into ______ types.
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.
Match the following:
| Group 'A' | Group 'B' | ||
| A. | Granite | 1. | Bedrock |
| B. | Soil layer | 2. | Plutonic rock |
| C. | Barren island | 3. | Strip farming |
| D. | Soil conservation | 4. | Active Volcano |
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 |
