2points as a result of the twenty-second amendment, presidents can: o a. veto constitutional amendments that have been approved by the states. o b. prevent pay raises for members of congress. o c. declare war without congressional approval. d. serve a maximum of two terms in office. submit

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 .

The correct answer is:   [a]:   the "stratosphere" .