Question

A _____ rock is created when extreme heat and pressure create chemical changes or a tighter packing of minerals in a previously existing rock.

A. volcanic
B. igneous
C. chemical
D. metamorphic

Answer 1

a metamorphic rock is created when extreme heat and pressure create chemical changes or a tighter packing of minerals in previously existing rock :)

Answer 2

D. metamorphic

Step-by-step explanation:

Metamorphic rock is a type of rock derived from the metamorphosis (transformation) of magmatic or sedimentary rocks that undergo modification in their atomic composition, due to the influence of the different conditions of the environment in which they are inserted compared to the places where they were originally formed.

In most cases metamorphic rocks form from other rocks, which are subjected to intense pressures or high temperatures. This process occurs naturally due to the intense and constant movement of the earth's core, causing the periodic movement of the planet's crust (the covering of earth and rocks that make up the planet's outer region). The movement of the crust, in turn, initiates a rearrangement in the rocks located in the upper part, being that when the magmatic and sedimentary rocks are pushed to lower levels, thus giving rise to the process of formation of the metamorphic rock.