Q ; The function of the erector spinae muscles is to ; 1) lift the arms.
2) rotate the shoulders.
3) bring the chin down to the chest.
4) support the back’s upright posture.

The greenhouse effect a. something that has occurred for millions of years b. an unnatural phenomenon caused by humans that maintains earths temperature range. c. the results of the differences in the angle of the suns rays d. an unnatural phenomenon that causes heat energy to be radiated back into the atmosphere