What aspect of human interaction can we attribute to this success?
- reciprocity
The Mayan celebrations involved rituals of bloodletting of choice animals as well as human sacrifice. where people would be killed by having their heart ripped out from the chest.
This was done to appease the gods and it was done in every celebration of every calendar be it political or religious. The most sacred was the tongue and the ear, they pierced the ear to hear from the Gods and cut the tongue to enable them to speak what they heard from Gods.
B. The fertilizers used by farmers contaminate the river.
Answer: Babylonians came after Akkadians and Sumerians so it is important to bear this in mind because many of their skills were inherited from previous cultures and some of these skills can be viewed as an extension of Sumerian and Akkadian culture/civilization (Sumerian language continued being language of liturgy, some old Sumerian religious cults were still there, Sumerian mythology was still present, astronomy and mathematics and cuneiform characters were inherited). Day divided in 24 hours is a Babylonian invention, circle divided in 360 degrees is also Babylonian invention, capacity to predict lunar eclipse and discovery of lunation (and their symbolic interpretation) is a Babylonian invention. Big part of all that was acquired/inherited by old Greek thinkers (Thales for example).
Explanation: There is no doubt that astronomy/astrology is of Sumerian/Babylonian origin and this knowledge was spread in Middle East and later it came to Greece. Egyptian and Greek (and later western) astrology was influenced by Babylonian astrology. Many predictive techniques and divinations we can found among Egyptians and Greek were of Babylonian origin (study of planetary secondary progressions, eclipses etc.).