Advertisements
Advertisements
प्रश्न
Find the difference between:
Igneous and sedimentary rocks
Give three points of difference between the igneous rocks and the sedimentary rocks.
Advertisements
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
Why is diamond clear and hard while graphite is soft?
Rocks and minerals play a very important role in our lives.
Can you imagine modern life without minerals?
Fill in the blank
A category of rock which is formed by the alteration of the parent rock due to heat and pressure is called: ______________.
Fill in the blank
Sedimentary rocks such as limestone change into ___________.
State two characteristics of the mantle.
Classify the following rocks by selecting the correct option given below:
shale
Classify the following rocks by selecting the correct option given below:
gypsum
Explain the structure of the earth’s interior?
How are rocks different from minerals?
Name any three elements of the earth’s crust.
Give one difference between Extrusive igneous and Intrusive igneous rocks.
Give two examples of sedimentary rocks.
Explain this term associated with rocks: Laccoliths and Batholiths
How are igneous rocks classified on the basis of their chemical composition?
How are sedimentary rocks classified on the basis of their formation?
Name different types of sedimentary rocks.
What physical agents are involved in the sedimentary rocks?
Distinguish between Thermal metamorphism and Dynamic metamorphism.
What are metamorphic rocks?
Classify the following rock: Shale
Classify the following rock: Gypsum
Fill in the blanks
______ is formed, when the angular and coarse grains of some durable minerals are cemented together.
Give one example of an area of: Sedimentary rocks in India
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 one term for the following statement:
It has a definite chemical composition with its own chemical and physical properties.
Give one term for the following statement:
Type of metamorphism in which changes are caused due to high pressure.
Why fossils are preserved in Sedimentary and not in Igneous rocks?
Which types of rocks are predominantly found at the following locations?
- Central Maharashtra
- South Konkan
- Vidarbha
Igneous rocks are called primary rocks.
Chemical sedimentary rocks are found in the beds of reservoirs.
What are metamorphic rocks?
Rocks are classified into ______ types.
What is thermal metamorphism?
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 |
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.
