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22 December, 10:04

elsic (or silicic) magma a. crystallizes at the highest temperatures. b. is more viscous than mafic magma. c. has approximately 40% silica and little magnesium and iron. d. is likely to form dark-colored igneous rocks.

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  1. 22 December, 10:26
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    Option (B)

    Explanation:

    Felsic magma refers to those magma that are comprised of more than 65% of silica content and are highly made up lighter elements like oxygen, silicon, sodium, aluminum, potassium, and are light-colored in comparison to the basic magma. Due to its high silica content, these are high viscosity magma and flows at a much slower rate. The felsic magma crystallizes at a relatively low-temperature rocks and the rocks that are formed from this type of magma have a specific gravity of less than 3.

    Thus, the correct answer is option (B).
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