Which statement is supported by the results of rutherford's gold foil experiment a. negative and postive charges spread evenly though out an atom b. there are dense, postive charged mass in the center of an atom c. gold is not dense as previously thought d. alpha particals have a postive charge

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.