Which of the following is a valid explanation for the existence of a coarse-grai

Question

Which of the following is a valid explanation for the existence of a coarse-grained (phaneritic) igneous rock on the surface of Earth? The coarse-grained rock formed from the accumulation of pieces of other igneous rocks that were weathered and eroded on Earth's surface. The coarse-grained rock formed from slowly cooling magma beneath Earth's surface, but was later uplifted by tectonic forces and exposed by weathering and erosion. The coarse-grained rock formed from re-melting and slow cooling of fine-grained igneous rocks on Earth's surface. The coarse-grained rock formed on Earth's surface from slowly cooling magma. Choose the words on the right that best complete the following sentences. A sedimentary rock containing mostly quartz likely traveled [X] before deposition and lithification than a sedimentary rock containing a relatively large amount of feldspar. Furthermore, a sedimentary rock containing large, angular fragments likely traveled [Y] before deposition and lithification than a sedimentary rock containing smaller, more rounded particles.

Explanation / Answer

2) felsic igneous rock = B (formed from melting of continental rocks)

Mafic rocks = A (from melting of oceanic crust)

Intermediate rocks= C (from melting of both oceanic and continental)

3) option B is correct

4) X = B

Y= A

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