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प्रश्न
Fill in the blanks
______ rocks are formed by the deposition of shells and skeletons of organism.
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उत्तर
Organically formed sedimentary rocks are formed by the deposition of shells and skeletons of organism.
संबंधित प्रश्न
Rocks and minerals play a very important role in our lives.
Can you imagine modern life without minerals?
Write True or False. Rewrite the false statement correctly :
Minerals are organic substances.
Write True or False. Rewrite the false statement correctly :
Rocks are used in construction industries.
What is Geology?
Which rocks are associated with ores of metals?
State the types of rocks for the formation of which the following process is involved.
Solidification of magma on the surface of the earth.
Distinguish between rocks and minerals.
Explain the formation of sedimentary rocks on the basis of agents of formation.
Distinguish between Thermal metamorphism and Dynamic metamorphism.
Fill in the blanks
______ is formed, when the angular and coarse grains of some durable minerals are cemented together.
Fill in the blanks
Extrusive rocks are also known as ______ rocks.
State the properties of metamorphic rocks.
Give one term for the following statement:
Type of metamorphism in which changes are caused due to high pressure.
Give reasons for the following
Extrusive rocks generally have small crystals.
Fill in the blank below:
______are intrusions of igneous rock that are vertical in shape
Lava comes out from a volcano.
Why are crystalline rocks called so?
Mention some uses of rocks.
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 |
