This description of farming in the Incan empire in 1539 was written by Garcilasco de la Vega. He was the son of an Incan princess and a Spanish explorer.
As soon as the Incan ruler had conquered any kingdom and set up his
government, he ordered that the farmland used to grow corn be extended.
For this purpose, he ordered irrigation channels to be constructed. The
engineers showed great cleverness and skill in supplying water for the crops,
since only scattered sections of the land could grow corn. For this reason,
they endeavored to increase its fertility as much as possible.
What engineering technique did de la Vega describe?

One day as your professor is driving to work, another driver runs through a red light and hits his car. the professor is shaken up but survives the accident. however, the next time he starts to enter the intersection,he becomes nervous and fearful. soon,he starts going to work via another route to avoid the intersection even though this route adds twenty minutes to his commute in each direction. according to the principles of classical conditioning, why does the professor become scared of the previously harmless intersection? what can he do about this, as going via other route is very time consuming? be specific. break down the situation into its parts and show how the principles of learning apply.

Compare and contrast the treatment of different religions by rulers of the arab empire as soon as you can with i've been working on this test for like an hour and a half and i'm super stressed : (

What something thats on the news, and is going on currently?