Which is true about the dissolving process in water?
pelar solutes do not dissolve easily in water
water molecules are attracted by solute ions at the surface of the solute,
© water molecules move throughout the solute.
© solute molecules pull water molecules away from the surface

You know how the first one if filled up like the objects do the same but with the other categories

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 .