What is the main advantage of the third member in a triad social group?
a. the third member can act as an arbiter during conflicts.
b. the third member can be a backup in many social situations.
c. the third member can be a source of knowledge.
d. the third member may convince others to join the group.

The correct answer is A. The third member can act as an arbiter during conflicts.

Explanation:  

Triads differ from dyads in number. and the third person in the triad could act as a mediator when a conflict is presented between the two other members. And this makes the triad stronger than the dyads, they are less likely to break up.

yes. it has been proven significantly, especially with a more than ever huge influence of social media & everybody's opinion. for example, we could bring up movements such as the black live's matter movement, or something as such as the march for our lives movement. more than ever it seems as though everybody is starting to care more about this world.

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.