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प्रश्न
How are chemically-formed sedimentary rocks formed? Give examples.
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उत्तर
Chemically formed sedimentary rocks are formed through chemical action of water. Some mineral like limestones and salts are dissolved into the water and after the evaporation of water form a particular type of rock which is formed by the chemical sedimentation of limestones into gypsum and salt into various types of nitrates.
संबंधित प्रश्न
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: ______________.
Write True or False. Rewrite the false statement correctly :
Basalt is an example of an intrusive igneous rock.
Give an example of intrusive igneous rock.
Classify the following rocks by selecting the correct option given below:
sandstone
What are known as metamorphic rocks?
Give two examples of metamorphic rocks.
Explain this term associated with rocks: Fossil fuels
Classify the igneous rocks on the basis of their place of origin.
How are sedimentary rocks classified on the basis of their formation?
What is metamorphism?
Give one word for the following.
Rocks formed by the cooling and solidification of molten rock from beneath the earth crust.
Fill in the blanks
Extrusive rocks are also known as ______ rocks.
Why are the Igneous Rocks called Primary Rocks?
Mention the types of rocks based on formation?
The types of rocks based on formation are
How are igneous rocks formed?
The word ‘Igneous’ is derived from the ______ word.
What are the uses of soil?
Why are crystalline rocks called so?
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. | Granite | 1. | Bed rock |
| B. | Soil layer | 2. | Plutonic rock |
| C. |
Barren island |
3. | Strip farming |
| D. | Soil conservation | 4. | Active Volcano |
