Which best describes the reason for the use of trench warfare in world war i? a. soldiers dug into the ground in order to protect themselves from the harsh weather. b. the soldiers needed a large space in which to bury all of their deceased comrades. c. soldiers dug into the ground to protect themselves from machine gun and mortar fire. d. the soldiers wanted a clear line from which to launch their offensive attacks on the enemy.

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.

Match the following: 1. empirical the belief that an idea should be evaluated based on how it works 2. fundamentalism knowledge based on observation and experiment rather than theory 3. obtrusive to intentionally force ideas or intrude on others 4. pragmatism not religious or spiritual in nature 5. secular a religious doctrine that emphasizes a return to rigid principles

What was the overall impact of eli whitneys introduction of interchangeable parts?