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प्रश्न
Name the types Sedimentary rocks based on agents of formation.
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उत्तर
There are five main types of rocks on the basis of agents of formation:
- Riverine Rocks These are formed by the sediments deposited by running water or a river.
- Lacustrine Rocks These are formed by the deposition of silt, etc., on the bed of lakes.
- Glacial Rocks These are formed by the debris carried on and deposited by glaciers.
- Aeolian Rocks These are formed by the deposition of sand accumulation by the wind.
- Marine Rocks These are formed by the deposition of sediments at the ocean floor. These types are calcareous and carbonaceous sedimentary rocks.
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संबंधित प्रश्न
Write True or False. Rewrite the false statement correctly :
Basalt is an example of an intrusive igneous rock.
With the help of your teacher, collect different types of rocks such as granite, sandstone, limestone, marble, slate, graphite, etc. and prepare a chart containing information about their colour, hardness, texture, and permeability.
State two characteristics of Basic Igneous Rocks.
Which agents are responsible for deposition of sediments?
Briefly define Mechanical Metamorphism.
In what type of rocks do you find fossils and why?
Sedimentary rocks are also called stratified rocks. Why?
Classify the following rock: Limestone
Classify the following rock: Marble
Classify the following rock: Schist
Give one word for the following.
Rocks formed by the cooling and solidification of molten rock from beneath the earth crust.
Chemical sedimentary rocks are found in the beds of reservoirs.
Classify and explain the rocks.
Diamond is an example of _______ rock.
Mention a few specimens of magnificent rock-cut architecture in India?
What are fossils?
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.
| A. | Basalt | 1. | Anthracite |
| B. | Limestone | 2. | Extrusive igneous |
| C. | Coal | 3. | Metamorphic rock |
| D. | Gneiss | 4. | Sedimentary rock |
