Igneous rocks form from the cooling and solidification of lava or magma.
I'm not a big fan of this question, but I think the "desired" answer is grain-size (from very large to microcrystalline) and interlocking texture.
(It could be tendentiously argued that tuff (also called tufa) and possibly other pyroclastic rocks, which form from volcanic ejecta, lack an interlocking texture because they are more like sediments that are welded together. I say this is tendentious because such rocks are about as much sedimentary as they are igneous, and are not typical igneous rocks if they are igneous rocks at all.)
I would say the answer is c.
The satellite that was used to produce the sea floor maps in this year was the Geosat.
<h3>What is the Geosat?</h3>
The Geosat is a United States Navy satellite that was used to produce these maps in this year.
The Geosat was launched in the year 1985 into the inclination orbit. It is helpful in the measurement of sea surface heights to about 5cm.
Read more on Geosat here: brainly.com/question/18496962
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