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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.
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संबंधित प्रश्न
What is crust?
Give an example of intrusive igneous rock.
Classify the following rocks by selecting the correct option given below:
gypsum
How are sedimentary rocks formed?
Name two important landforms made by Igneous Rocks.
Name the rocks which are most widespread on the earth.
Distinguish between the following:
Calcarious and Carbonacious rocks.
What is metamorphism?
What is meant by the term ‘metamorphism’?
Classify the following rock: Dolomite
Classify the following rock: Limestone
Classify the following rock: Gypsum
Classify the following rock: Quartzite
Classify the following rock: Slate
Classify the following rock: Graphite
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 word for the following.
The core of the earth occupied by rock in iron and nickel.
Fill in the blanks
______ is the best example of the wind deposited stratified rock.
Give one term for the following statement:
Rounded or sub-rounded fragments, usually water-born cobbles, pebble and gravel, cemented together by a matrix of calcium carbonate, silica, etc.
Give an example of a Plutonic rock.
Give reasons for the following
Silicates are the most common rock forming minerals.
Distinguish between Intrusive and Extrusive Rocks
Which one of the following is the most widespread most and productive category of soil.
Igneous rocks are called primary rocks.
The two types of Intrusive Igneous rocks are ______.
Lava comes out from a volcano.
What are the uses of soil?
______ refer to rock in Greek.
Out of 2,000 different types, only ______ are the basic minerals commonly found all over the earth.
Intrusive Igneous rocks are also called ______ rocks.
Statement (1) : Sedimentary rocks consist of many layers.
Statement (2) : Sedimentary rocks are formed by the sediments deposited at different points of time
Statement (1): Sedimentary rocks consist of many layers.
Statement (2): Sedimentary rocks are formed by the sediments deposited at different points of time.
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. | 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.
