The rear deltoid row is a back exercise.
a. true
b. false

True:The rear deltoid row is a back exercise.The rear deltoid row exercise is a simple but effective exercise which is widely used to target your lats and your rear deltoids.The rear deltoids often involve the teres major and rhomboid muscle. They are mostly a secondary muscle in several back exercises.

that statement is true. From a normal perspective by briefly seeing its movement, a rear deltoid row could only be seen as a shoulder exercise. But actually , this workout also put a burden on your upper back so it could also be considered as a back exercise.

35 cubic feet of dirt if it's digging a burrow

It depends,on your dog and the any trap.but i pray that he is fine.