Choose all the answers that apply. The elements in group 18 . are highly reactive are gases at room temperature usually do not react with other elements are in a group called the noble gases are nonmetals

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 .

Ais your answer to this