When subjected to heat and pressure, a chemical sedimentary rock can be changed into which rock type?

a-metamorphic rock

b-a foliated rock

c-a clastic sedimentary rock

d-a non-foliated igneous rock

Option (A)

Explanation:

The metamorphic rocks are defined as those rocks that are formed due to the increasing pressure and temperature conditions. They are known as the secondary rocks because they are directly derived from either igneous or sedimentary or other metamorphic rocks. For example, Quartzite, Schist, Gneiss and Marble.

Due to the high amount of temperature and heat conditions, the chemical composition of the rock alters and changes to a more higher grade rocks. This metamorphic rocks are mainly of 2 types. They are as follows-

(1) Foliated- For example, Schist and Gneiss

(2) Non-foliated- For example, Marble and Quartzite.

Thus, the correct answer is option (A).

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