Question

an igneous rock has a low silica content and is high in iron and magnesium. what type of magma most likely formed this rock? felsic volcanic mafic plutonic

Explanation:

Mafic magma has low silica content and is rich in iron and magnesium. Felsic magma has high silica. Volcanic and plutonic refer to cooling - environment rather than composition.

Answer:

C. mafic