What was the core of American identity in the late 19 century? explain why this was a concern at the time. ONLY ANSWER IF U KNOW UR STUFF. DON'T GIVE ME ANSWER FROM THE INTERNET. PUT IT IN YOUR OWN WORDS ​

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.

Who was a 1920s film star who was the first male "heart throb" in film.

How diamonds came to be the gem of choice for engagement ring