What process is shown in the image? SC.6.E.7.2

the correct answer is 4) heat and pressure

metamorphic rocks arise from transformation of existing rocks types, in a process called metamorphism. during metamorphism the original rock(prolith) change into metamorphic rock by heating (150-200c) and pressure of more than 1000 bar. the original rock can be sedimentary, igneous, or existing metamorphic rock.

it's diluted or concentrated

in a diluted solution, you can add a lot more solute but in concentrated only a little more can be added