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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
What are minerals?
Classify the following rocks by selecting the correct option given below:
coal
Classify the following rocks by selecting the correct option given below:
gypsum
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.
What is Geology?
Name any three elements of the earth’s crust.
What are known as metamorphic rocks?
Explain this term associated with rocks: Laccoliths and Batholiths
Describe how igneous rocks are formed.
How are sedimentary and igneous rocks formed?
What physical agents are involved in the sedimentary rocks?
Classify the following rock: Quartzite
Fill in the blanks
______ rocks are formed by the deposition of shells and skeletons of organism.
State the properties of metamorphic rocks.
Distinguish between Intrusive and Extrusive Rocks
Classify and explain the rocks.
What are fossils?
Igneous Rocks are ______ rocks.
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.
