Rocks rich in silica and magnesium
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Felsic igneous rocks are silica rich and contain abundant potassium feldspar and quartz. Felsic igneous rocks are light in color. Mafic igneous rocks are iron and magnesium rich and contain abundant pyroxene, and calcium rich plagioclase feldspar.
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Sima
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in ncert books of social science this question has given to give in single term that's why I have given single term
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