HELP ASAPP WILL MARK BRAINLIST Matter can be measured in many ways for specific purposes. Which measurement depends on the force of gravity and is not a reliable measurement?
A. Mass
B. Weight
C. Volume
D. Temperature

The independent variable is the type of music.the dependent variable is the pulse rate.the intervening variable is the age of the subject.if the mother does not like rock, her pulse is likely to not increase.the same might be true for the sister.the friend may like rap and gets excited.to establish cause/effect relationship, all of the subjects must be consistent.hope i .