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Topic Content:
- Characteristics of Igneous Rocks
- Mode of Formation of Igneous Rocks
- Types of Igneous Rocks
Characteristics of Igneous Rocks:
- Light and dark in colour.
- Crystalline in nature.
- Do not occur in layers.
- Resistance to weathering and erosion.
- Glassy in appearance.
- Do not contain fossils.
- Hard and impervious.
Mode of Formation:
Igneous rocks are formed by the cooling and solidification of molten rocks called magma, ejected
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