Pz 20pts

the elements carbon, nitrogen, and oxygen are all part of the same on the periodic table.
a)diagonal
b)row
c)group
d)period

They are all part of the same group on the periodic table hopw this helps

I’m pretty sure it’s false i’m not sure

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 .