A wet shirt is on a clothesline to dry on a summer day. The shirt dries because water molecules: A. Gain heat energy and condense

B. Gain heat energy and evaporate

C. Lose heat energy and condense

D. Lose heat and evaporate

Ithink the answer is 56.

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 .