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Question
State the types of rocks for the formation of which the following process is involved.
Solidification of magma on the surface of the earth.
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Solution
Extrusive igneous rocks
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Fill in the blank
Granite is an example of intrusive ________ rocks.
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granite
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A sedimentary rock, which is composed of microscopically fine, soft and smooth particles.
Why are Sedimentary rocks called the Secondary rocks?
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Statement (1): Sedimentary rocks consist of many layers.
Statement (2): Sedimentary rocks are formed by the sediments deposited at different points of time.
Statement (1): Sedimentary rocks consist of many layers.
Statement (2): Sedimentary rocks are formed by the sediments deposited at different points of time.
Match the following:
| 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.
