in a few sentences, describe in what ways new wealth and opportunities occurred along the silk roads

The ability to accurately gauge the distance of the coffee cup on your desk as you reach for it is called:

How does sociology account for the cause of drug and alcohol addiction?

Carol is a recent high-school graduate with an excellent grade point average. after much thought, she decides to pursue a graduate degree in physics after she finishes her undergraduate degree and eventually become a professor. to attain this goal, she realizes that she must first study hard and do well in her undergraduate classes, then take the graduate entrance exam and apply to the best graduate programs in her field. along the way, she wants to obtain an internship, as this will her get into a quality graduate program. which motivational mechanism of the goal-setting process does this scenario demonstrate?