What is one advantage of a physical ball and stick model made with a modeling kit over a graphical ball and stick model on paper or a computer screen?

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 .

Density and pressure

Idon't hope someone you