Select the correct answer.
A 20-pound sedimentary rock formed on a mountain cliff near the sea. The rock was made up of grains of sand, pebbles, and exoskeletons of tiny
insects. It was held together by calcite. One day, the rock fell into the ocean and over time was buried deep inside Earth. Once inside, the rock was
no longer sedimentary but instead turned into a metamorphic rock. After many years, it returned to Earth's surface. Why did the rock not become an
igneous rock?
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A. It lay in a region that was close to the salt-filled ocean.
B.
C.
D.
O E.
It contained organic material from a number of insects.
It did not experience high enough pressure for compaction.
It had not experienced high enough temperatures to melt.
It had a composition that was not homogenous.



Answer :

The rock did not become an igneous rock because it had not experienced high enough temperatures to melt. Igneous rocks are formed from the cooling and solidification of molten material, such as magma or lava. In the scenario described, the rock transformed from a sedimentary rock to a metamorphic rock due to the intense heat and pressure deep inside the Earth, but it did not reach the temperatures required for melting and subsequent formation as an igneous rock.

Therefore, the correct answer is:

C. It had not experienced high enough temperatures to melt.