Are defined as the deliberate pursuit of actions intended to benefit the interests or welfare of others.

Altruistic Behavior

Explanation:

According to my research on studies conducted by various psychologists, I can say that based on the information provided within the question the term being defined in the question is called Altruistic Behavior. Like mentioned in the question Altruism is the belief that the well-being of others is as important, if not more important than the well-being or survival of yourself.

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  b.

there are isolated pockets of farming, generally around rivers and oases, which are used for irrigation.

sumerians were polytheistic, meaning they believed in many different gods. so, the best answer is c.