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प्रश्न
How are igneous rocks formed?
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उत्तर
Igneous rocks are the primary rocks formed by the solidification of the molten magma.
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संबंधित प्रश्न
Which rocks are associated with ores of metals?
What processes are involved in the formation of Igneous Rocks?
Distinguish between the following:
Calcarious and Carbonacious rocks.
Describe how igneous rocks are formed.
State the chief characteristics of metamorphic rocks.
Give some examples of metamorphic rocks formed from sedimentary and igneous rocks.
Give reasons for the following
Extrusive rocks generally have small crystals.
Match the following:
| (a) | Igneous | (i) | Magma |
| (b) | Sedimentary | (ii) | Transformation |
| (c) | Metamorphic | (iii) | Gypsum |
| (d) | Molten material | (iv) | Basalt |
| (e) | Rock Cycle | (v) | Marble |
Explain the different types of sedimentary rocks.
Statement (1): Sedimentary rocks consist of many layers.
Statement (2): Sedimentary rocks are formed by the sediments deposited at different points of time.
