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Question
Give reasons for the following
Extrusive rocks generally have small crystals.
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Solution
Extrusive rocks generally have small crystals because in the formation of these rocks, the solidification of magma takes place at a slower rate.
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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.
