If all the stars in the universe were the same distance from earth, we would see how each star’s brightness compares with all the other stars. this is the
a. absolute magnitude
b. parallax
c. redshift

answer; ///i do believe that the correct answer is (b); ///to inform, entertain or persuade an

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.