Answer:
Preachers were against greed and the welfare of others.
They used electronic surveillance meaning they were able to listen to phone calls, reading emails and text messages etc.
The correct answers are working on a history test and solving a sudoku puzzle.
The reason for this is because you can listen to music and don't need to be explicitly conscious - imagine drifting away in thoughts while you listen to music, or do something completely unrelated.
The same goes for riding a bike. Once you know how to ride a bike and know the path where you're going, your attention and explicit consciousness can be allocated somewhere completely else :)
The correct answers are the middle two - because of them require you to be present and attentive of the situation and what you have to do.
One technology was agricultural in the fertile Nile Valley of flooding then planting and harvesting the fields in a cyclical manner though some of the flooding may have been natural. Also, the Egyptians invented paper or papyrus which gave them a medium for writing and recording data. Also, they used the wheel and the lever and the ramp. Of course the wheel was very important for their transportation ie with chariots for example. The ramps were used for building such as the pyramids.
