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प्रश्न
Explain the formation of sedimentary rocks on the basis of agents of formation.
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 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 oh and deposited by glaciers.
- Aeolean Rocks These are formed by the deposition sand accumulation by the wind.
- Marine Rocks These are formed by the deposition of sediments at the ocean floor. These types are Calcarious 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.
Write True or False. Rewrite the false statement correctly :
Igneous and sedimentary rocks can change into metamorphic rocks.
Classify the following rocks by selecting the correct option given below:
granite
Classify the following rocks by selecting the correct option given below:
sandstone
Explain this term associated with rocks: Extrusive Igneous Rocks
Distinguish between the following: Thermal and Dynamic Metamorphism.
Describe how are igneous rocks formed? State their chief characteristics.
In what type of rocks do you find fossils and why?
Sedimentary rocks are also called stratified rocks. Why?
Classify the following rock: Coal
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.
State the properties of metamorphic rocks.
Which one of the following is the most widespread most and productive category of soil.
______ is known as the primary rocks.
Kola sample title is located in ______.
______ refer to rock in Greek.
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 |
