Which statement describes a problem with the peer review process in scientific research? It can sometimes reject important new ideas or novel techniques.
It forces new scientists to meet the same standards that established scientists meet.
It always requires scientists to have to reanalyze their data.
It often makes it more difficult to justify a conclusion.

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.

the correct answer to this question is #5

c.           is the correct answer