33. An extrusive igneous rock with a fine grained-texture, low silica content and dark color is A. calcite B. limestone C. basal t D. shale E. schist
1 answer:
Answer:
C. basalt
Explanation:
Basalt -
It is a type of mafic extrusive igneous rock which is composed of magnesium and iron lava , is called as a basalt .
Around 90% of the rocks of the Volcanoes are made up of Basalt .
The texture of this Basalt is , finely grained , because , the rocks are found by rapid cooling .
The viscosity of Basalt is low , due to its low content in silica .
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