Acertain rock contains large, jagged pieces of other rocks, cemented by fine particles. what type of rock is this? explain.

The type of rock is Sedimentary.They are formed from particles of sand, shells,pebbles, and other fragments of material.

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 .

The answer is b because a,c,and d are opinons