Answer:
W. E. B. Du Bois
Explanation:
I remember learning it as bois.
The process was cognitive dissonance
This is the process where people have inconsistent thoughts and behave weirdly in their decision making. In this case, they correlated the prevention of the destruction of earth with their prayer, even though it had nothing to do with it. This is opposite of their previous statement which said that the world would end on that date.
The development of irrigation systems made farming easier, as water was more easily accessible to crops. This meant that food could be produced more efficiently. More efficient farming techniques meant that food was more plentiful, where people weren't constantly scrambling for their next meal or going days without eating. It also gave people the ability to specialize in certain trades, creating better quality of goods and advancing technology in civilizations.
Answer: The Energy Revolution is the most important because they needed the energy for steam engines and factories.