* Metamorphic rock is formed from existing rocks (igneous, sedimentary, or even other metamorphic rocks) that have been changed by heat, pressure, and/or chemical reactions.

* Earthquakes can cause shifts in the Earth's crust, leading to the uplift of rocks.

The most likely transformation depends on the type of metamorphic rock and the conditions it is exposed to:

* If the metamorphic rock is exposed to air and water: It will likely undergo weathering, breaking down into smaller fragments. Over time, these fragments may become sediment, which can then form sedimentary rock.

* If the metamorphic rock is exposed to intense heat from volcanic activity: It might melt and recrystallize, forming igneous rock.

* If the metamorphic rock remains buried under pressure and exposed to continued heat: It could potentially undergo further metamorphism, transforming into a different type of metamorphic rock.

Key takeaway: The type of rock that the metamorphic rock transforms into depends largely on the environment and the new pressures and temperatures it's exposed to.