The Rock Cycle is a series of changes. For example, sedimentary rock can change into metamorphic rock or into igneous rock. Igneous rock can also change into sedimentary rock or into metamorphic rock. These are natural factors which occur that cause these changes. Which factor causes metamorphic rock to turn into igneous rock?

weathering and erosion

heat and pressure

melting and then cooling

cementation

i confess that there are several parts of this constitution which i do not at present approve, but i am not sure i shall never approve them: for having lived long, i have experienced many instances of being obliged by better information or fuller consideration, to change opinions even on important subjects, which i once thought right, but found to be otherwise. it is therefore that the older i grow, the more apt i am to doubt my own judgment, and to pay more respect to the judgment of others.

explanation:

omgggggg i go to k12 too : d

the real answer is b