Science has some limitations: It can be used only to answer certain types of questions. Which of the following questions can be answered using a scientific
approach? (Check all that apply.)

No is the answer to the question

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 .