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प्रश्न
Give reasons for the following
Extrusive rocks generally have small crystals.
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उत्तर
Extrusive rocks generally have small crystals because in the formation of these rocks, the solidification of magma takes place at a slower rate.
संबंधित प्रश्न
Fill in the blank
Conglomerate is an example of _____________ rocks.
Write True or False. Rewrite the false statement correctly :
Sedimentary rocks are formed by the cooling and solidification of molten rock called magma
State two characteristics of the mantle.
State two points of distinction between rocks and minerals.
Give one difference between Extrusive igneous and Intrusive igneous rocks.
Name the rocks which are most widespread on the earth.
What are known as metamorphic rocks?
Explain this term associated with rocks: Extrusive Igneous Rocks
Explain this term associated with rocks: Laccoliths and Batholiths
Explain this term associated with rocks: Fossil fuels
Classify the following rock: Dolomite
Give one word for the following.
The best example of chemically-formed sedimentary rock, which has been formed by the evaporation of water from solution containing minerals.
Give one example of an area of: Metamorphic rocks,
Give one example of an area of: Sedimentary rocks in India
How are sedimentary rocks classified?
Give reasons for the following
Man’s habitat is the biosphere and not the lithosphere in the true sense.
Fill in the blank below:
______are intrusions of igneous rock that are vertical in shape
The oldest sedimentary rocks of the world have been identified in ______.
Match the following.
| A. | Basalt | 1. | Anthracite |
| B. | Limestone | 2. | Extrusive igneous |
| C. | Coal | 3. | Metamorphic rock |
| D. | Gneiss | 4. | Sedimentary rock |
