In the past when a commodity has been identified as a new source of biofuel in addition to its usual food uses, that commodity has seen a spike in prices True or False

I think that the answers is true

The answer is 323 g.

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 .