Which of these statements is supported by the results of thomson’s experiment? check all of the boxes that apply. atoms are indivisible. cathode rays are made up of negatively charged particles. atoms contain negatively charged particles.

The answers are 2 and 3.

Where are the following questions

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 .