On sunday afternoon, rick spent a couple of hours picking up discarded bottles and cans from a picturesque section of the wildlife refuge, even though he knew he would not get paid anything for his efforts. rick's motivation is best described as being.

intrinsic

Explanation:

Intrinsic motivation: In psychology, the term intrinsic motivation is referred to as the phenomenon that involves different behavior of an individual that is being driven through internal rewards.

In other words, intrinsic motivation refers to the process through which an individual is being involved in activities or behavior that comes from inside the person because that behavior or activity satisfies the person internally and naturally.

In the question above, Rick's motivation is best described as being intrinsic.

according to hess's theory, when the magma cooled, it would expand and push the tectonic plates apart. it would push the north and south america plates to the west and eurasia and africa ones to the east. the atlantic ocean would get wider but the coastlines of the masses would stay the same.

harry hammond hess was a geologist and a united states navy officer in the second world war. he is considered to be one of the founding fathers of the theory of plate tectonics. he is known for his theories on sea floor spreading, stating that the movement of the continents was the result of see floor spreading. the continents are attached to the plates and do not move separately. the plates themselves shift and change shape, carrying the continents along.