Answer:
C
Since all the water that was needed for irrigation was frozen into icebergs, early humans could not plant.
Answer:
Taking root around 12,000 years ago, agriculture triggered such a change in society and the way in which people lived that its development has been dubbed the "Neolithic Revolution." Traditional hunter-gatherer lifestyles, followed by humans since their evolution, were swept aside in favor of permanent settlements and a reliable food supply.
Explanation:
You seem to have posted in the wrong category but thats quite alright...
m∠6 = 180 - 65
m∠6 = 115
Answer: m∠6 = 115