What do the seven dots around fluorine represent

The seven dots around flourine are the valence electrons

The dispersed phase is liquid and dispersed medium in milk is liquid

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 .