Which of the following is not a necessary characteristic of civilizations?
a. complex social institutions
b. advanced technology
c. polytheistic religion
d. job specialization

How did thomas paine's pamphlet common sense convince reluctant americans to abandon the goal of reconciliation with britain and accept that separation from britain — independence — was the only option for preserving their liberty?

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.

Why did european nations face financial challenges after world war 1?