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प्रश्न
Distinguish between the following: Plutonic and Volcanic rocks.
उत्तर
| Plutonic rocks | Volcanic Rocks |
| These are intrusive igneous rocks. | These are extrusive igneous rocks. |
| These cool down very slowly due to heat in the interior | These cool down abruptly due to less temperature on the surface region. |
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संबंधित प्रश्न
Differentiate between SIAL and SIMA.
Classify the following rocks by selecting the correct option given below:
gneiss
What is Geology?
State two points of distinction between rocks and minerals.
Which rocks are associated with ores of metals?
Which agents are responsible for deposition of sediments?
Give two examples of metamorphic rocks
Explain this term associated with rocks: Extrusive Igneous Rocks
Explain this term associated with rocks: Metamorphism
How are sedimentary and igneous rocks formed?
Classify the following rock: Graphite
Give one word for the following.
The outer layer of the earth.
Give one word for the following.
A sedimentary rock, which is composed of microscopically fine, soft and smooth particles.
How are sedimentary rocks classified?
Give reasons for the following
Extrusive rocks generally have small crystals.
Why are crystalline rocks called so?
Mention some uses of rocks.
| A | B | ||
| 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.
